#Emily Riehl

[abstract--thot]

category theorists be like 'damn i gotta self-publish an arrow some time in the next 5-10 years'

[femftbllvr]

[ffactory]

Emily Riehl, a mathematician at Johns Hopkins University [ph. Yulia Grigoryants]

[max1461]

Emily Riehl is obviously one of the math cool-kids whomst we all appreciate but I do think it's funny the degree to which she displays like, the standard mathematician "having no idea what normal people know and don't know about math" thing here.

[julez-fiction]

Top 10 Movies You Probably Haven't Seen about Time Travel and Parallel Universes

If you are a fan of time travel movies, this list is for you. This list includes some gems you probably haven't seen but are totally worth a watch. Included on the list are movies with themes about time loops, alternate realities, parallel universes and time travel itself. So go on, get lost in time with this amazing list. Sorry, couldn't help it 🤣

1. Coherence, 2013

Sci-fi/ Thriller

IMDb: 7.2/10

Rotten Tomatoes: 88%

Director: James Ward Byrkit

Starring: Emily Baldoni, Maury Sterling, Nicolas Brendon, Elizabeth Gracen, Lorene Scafaria, Hugo Armstrong

Synopsis:

Eight friends at a dinner party experience a troubling chain of events due to the malevolent influence of a passing comet.

Google Synopsis:

2. Parallel, 2018

Sci-Fi/ Drama

IMDb: 5.8/10

Rotten Tomatoes: -

Director: Isaac Ezban

Starring: Aml Ameen, Martin Wallström, Georgia King, Mark O'Brien and Alyssa Diaz

Synopsis:

A group of friends stumble upon a mirror that serves as a portal to a "multiverse", but soon discover that importing knowledge from the other side in order to better their lives brings increasingly dangerous consequences.

3. Triangle, 2009

Horror / Thriller

IMDb: 6.9 / 10

Rotten Tomatoes: 80%

Director: Christopher Smith

Starring: Melissa George, Michael Dorman,Liam Hemsworth, Henry Nixon, Rachel Carpani

Synopsis:

Five friends set sail and their yacht is overturned by a strange and sudden storm. A mysterious ship arrives to rescue them, and what happens next cannot be explained.

4. The Endless, 2017

Horror / Thriller

IMDb: 6.5 / 10

Rotten Tomatoes: 92%

Director: Justin Benson and Aaron Moorhead

Starring: Justin Benson, Aaron Moorhead, Callie Hernandez,Tate Ellington, Lew Temple, James Jordan

Synopsis:

Two brothers receive a cryptic video message inspiring them to revisit the UFO death cult they escaped a decade earlier. Hoping to find the closure that they couldn't find as young men, they're forced to reconsider the cult's beliefs when confronted with unexplainable phenomena surrounding the camp. As the members prepare for the coming of a mysterious event, the brothers race to unravel the seemingly impossible truth before their lives become permanently entangled with the cult.

5. The Mandela Effect, 2018

Sci-Fi / Drama

IMDb: 5.8 /10

Rotten Tomatoes: 20%

Director: David Guy Levy

Starring: Charlie Hoffheimer, Aleksa Palladino, Robin Lord Taylor, Clarke Peters

Synopsis:

A man becomes obsessed with a phenomenon where facts and events have been collectively misremembered by thousands of people. Believing it to be the symptom of something larger, his search for answers brings him to the brink of insanity when a startling revelation forces him to make a difficult decision that, if he is right, could have consequences for the entire world.

6. Looper, 2012

Sci-Fi / Action

IMDb: 7.4 / 10

Rotten Tomatoes: 93%

Director: Rian Johnson

Starring: Bruce Willis, Joseph Gordon-Levitt, Emily Blunt, Paul Dano, Noah Sagan, Piper Perabo, Garret Dillahunt, Jeff Daniels

Synopsis:

In a future society, time-travel exists, but it's only available to those with the means to pay for it on the black market. When the mob wants to eliminate someone, it sends the target into the past, where a hit man known as a looper lies in wait to finish the job. Joe (Joseph Gordon-Levitt) is one such hired gun, and he does his job well -- until the day his bosses decide to "close the loop" and send Joe's future self (Bruce Willis) back in time to be killed.

7. Madelines, 2022

Horror / Sci-Fi / Drama

IMDb: 3.9 / 10

Rotten Tomatoes: -

Director: Jason Richard Miller

Starring: Richard Riehle, Brea Grant, Perry Shen, Sydney Steinberg

Synopsis:

While working in their garage, Madeline and Owen discover the secret to time travel. However, a mistake in their code causes a copy of Madeline to appear every day, and the pair must kill her to prevent the universe from destroying itself.

8. The Alternate, 2021

Sci-Fi / Thriller

IMDb: 5/10

Rotten Tomatoes: 75%

Director:Alrik Bursell

Starring: Ed Gonzalez Moreno, Natalia Dominguez, Syra McCarthy

Synopsis:

A man discovers a portal to another dimension in which he has everything he has always wanted.

9. Synchronic, 2019

Sci-Fi / Thriller

IMDb: 6.2 / 10

Rotten Tomatoes: 79%

Directors: Justin Benson and Aaron Moorhead

Starring: Jamie Dornan, Anthony Mackie

Synopsis:

When New Orleans paramedics and longtime best friends Steve and Dennis are called to a series of bizarre and gruesome accidents, they chalk it up to a mysterious new drug found at the scene. But after Dennis' oldest daughter disappears, Steve stumbles upon a terrifying truth about the supposed psychedelic that will challenge everything he knows about reality -- and the flow of time itself.

10. Synchronicity, 2015

Sci-Fi / Thriller

IMDb: 5.4 / 10

Rotten Tomatoes: 47%

Director: Jacob Gentry

Starring: Chad McKnight, A.J. Bowen, Brianne Davis, Michael Ironside

Synopsis:

A physicist (Chad McKnight) travels back and forth in time to prevent a seductive woman (Brianne Davis) and a ruthless tycoon (Michael Ironside) from stealing his invention.

[real-real-numbers]

17 and 41+ham sandwich theorem for reals math asks, please?

great female mathematicians: Emily Riehl, such an icon and her book is very cool!

my fav name of those three is the hairy ball theorem because I enjoy salacious content of course. also I feel like it is fairly evocative of what it's about, something that is slightly less true of the chicken mcnugget theorem. maybe that's just because I am not a mcdonalds eater (assigned no mcdonalds at birth by parent)

thanks for asking and sorry it took me so long!

[hyperfixationsstation]

bay fc and utah royals rosters so far

Bay FC

dorian bailey, alex loera, emily menges, ellie jean, caprice dydasco, scarlett camberos, joelle anderson

Utah royals

cameron tucker, carly nelson, hannah betfort, kate del fava, mandy haught, maddie pogarch, imani dorsey, michelle vasconcelos, emily gray, francesca tagliaferri, kaleigh riehl, mikayla cuff

[usasportsworld]

Deal alert! These Birdie Juice script hats are 30% off

Deal alert! These Birdie Juice script hats are 30% off

By: Emily Haas December 27, 2022 Our puff-embroidered Birdie Juice script caps are sure to be a conversation starter during your next round. And they are now on sale. Darren Riehl Who doesn’t love a good, vintage-inspired rope cap these days? The trendy look has taken off over the past year and is certainly here to stay. Our puff-embroidered Birdie Juice script caps are available in an array…

[ebouks]

Elements of Category Theory 1st edition

Elements of Category Theory 1st edition

Elements of Category Theory 1st edition by Emily Riehl, Dominic Verity Categories: Mathematics – Algebra Year: 2022 Edition: 1 Publisher: Cambridge University Press Language: english Pages: 780 ISBN 10: 1108837980 ISBN 13: 9781108837989 Series: Cambridge Studies in Advanced Mathematics 194 File: 29 MB

[isomorphismes]

There are no theorems in category theory.

Emily Riehl, Category Theory In Context

Mathematicians often tell her this; hence the book.

If I had to summarise her views in one sentence, it would be:

Everything is an adjunction.

I also like the division these mathematicians are making to her: essentially, a theorem is anything that solves Feynman’s challenge: by a series of clear, unsurprising steps, one arrives at an unexpected conclusion.

Examples for me include:

17 possible tessellations

6 ways to foliate a surface

27 lines on a cubic

1, 1, 1, 1, 1, 1, 28, 2, 8, 6, 992, 1, 3, 2, 16256, 2, 16, 16, 523264, 24, 8, 4 ways to link any-dimensional spheres.

the existence of sporadic groups

surprising rep-theory consequences of Young diagrams, Ferrers sequences, and so on (you could say the strangeness of integer partitions is really to blame here…)

59 icosahedra

8 geometric layouts

Books which are bristling with mathematical ideas of this kind include Montesinos on tessellations, Geometry and the Imagination (the original one), and Coxeter’s book on polyhedra (start with Baez on A-D-E if you want to follow my path). Moonshine and anything by Thurston or his students, I’ve found similarly flush with shockng content—quite different to what I thought mathematics would be like. (I had pictured something more like a formal logic book: row by row of symbols. But instead, the deeper I got into mathematics, the fewer the symbols and the more the surnames thanking the person who came up with some good idea.)

Note that a theorem is different here to some geometry — as in The Geometry of Schemes. The word geometry used in that sense, I feel, is to have a comprehensive enough vision of a subject to say how it “looks” — but the word theorem means the result is surprising or unintuitive.

This definition of a theorem, to me, presents a useful challenge to annoying pop-psychology that today lurks under the headings of Bayesianism, cognitive _______, behavioural econ/finance, and so on.

Following Buliga and Thurston to understand the nature of mathematical progress, within mathematics at least (where it’s clearer than elsewhere whether you understand something or not—compare to economic theory for example), there is a clear delination of what’s obvious and what’s not.

What is definitely not the case in mathematics, is that every logical or computable consequence of a set of definitions is computed and known immediately when the definitions are stated! You can look at a (particularly a good) mathematical exposition as walking you through the steps of which shifts in perspective you need to take to understand a conclusion. For example start with some group, then consider it as a topological object with a cohomology to get the centraliser. Or in Fourier analysis: re-present line-elements on a series of widening circles. Use hyperbolic geometry to learn about integers. Use stable commutator length (geometry) to learn about groups. Or read about Teichmüller stuff and mapping class groups because it’s the confluence of three rivers.

Sometimes mathematical explanations require fortitude (Gromov’s "energy") and sometimes a shift in perspective (Gromov’s (neg)"entropy").

This view of theorems should be contrasted to the disease of generalisation in mathematical culture. Citing two real-life grad students and a tenured professor in logic (one philosophical, one mathematical, the professor in computer science):

I like your distinction between hemi-toposes, demi-toposes, and semi-toposes

I care about hyper-reals, sur-reals, para-consistency, and so on

Abstract thought — like mathematicians do — is the best kind of thought.

(twitter.com/replicakill, the author of twitter.com/logicians, ragged on David Lewis by saying “What do mathematicians like?” “What do mathematicians think?” —— And Corey Mohler has done a wonderful job of mocking Platonism, which is how I guess the thirst for over-generalisation reaches non-mathematicians.)

Paul Halmos knew that cool examples beat generalisations for generalisation’s sake, as did V. I. Arnol’d. And it seems that the people a Harvard mathematician spends her time with make reasonable demands of a mathematical idea as well. It shouldn’t just contain previous theories; it should surprise. In Buliga’s Blake/Reynolds dispute, Blake wins hands down.

[femftbllvr]

[yourdailyqueer]

Emily Riehl

Gender: Female

Sexuality: Lesbian

DOB: N/A 

Ethnicity: White

Occupation: Mathematician, US Australian Rules team member, musician, writer

[mark-gently]

sick of identity politics, looking forward to composition politics

[pleaserelaxfc]

Actual protected lists vs. my mock lists

Spirit

Actual list:

Dorian Bailey Aubrey Bledsoe Bayley Feist Ashley Hatch Tara McKeown Julia Roddar Trinity Rodman Ashley Sanchez Sam Staab

I went 8/9 on these, protecting Nielsen over Feist.

I'll stand by saying that I wouldn't be surprised if there was an unofficial deal to leave Nielsen unprotected, given how much of a steal it was to send an unproven player and get back allocation money plus essentially Emily Sonnett protection - as far as I can tell, Vignola is an outside back and Cousins is a midfielder, so even if they're both starting (not exactly a guarantee), I'd think that Angel City needs at least one more starting-quality defender.

If there wasn't an agreement to that effect (and if Nielsen didn't express that she wants out), I'd find it a bit strange that they protected Feist - with McGrady gone, I think the Spirit's defensive line is a little shallower than their midfield and attack, and having been out for a full year, I might think Feist would be a a riskier bet for Angel City. But then again, Feist did really well in 2020, and if the Spirit think that she'll be coming back as good as ever (and that Angel City knows that), it might not be that strange.

Side note, at least two players' names are misspelled for the Spirit in the NWSL's release, which is really the kind of thing that shouldn't be happening.

Best available: Nielsen

Good positional picks: Heilferty

Pride

Actual list:

Mikayla Colohan (College Protected Player) Taylor Kornieck Sydney Leroux Phoebe McClernon Alex Morgan Courtney Petersen Amy Turner Marta Viviana Villacorta

I went 7/9 on these picks, guessing that the Pride would protect Jonsdottir and Riley over Colohan and Villacorta.

Jonsdottir and Riley were pretty integral to the Pride's game plan this past season, while neither Colohan nor Villacorta has actually appeared for the Pride, so I was initially fairly shocked by these choices. But, both Jonsdottir and Riley are on the older side within the team, which probably makes them less attractive to expansion teams, and the Pride will have to be looking to the future for their positions in the next few years anyway. Colohan and Villacorta both have a lot of potential, and in a rebuilding year, that's probably exactly what the Pride need for the next couple of seasons.

It is an almost surprisingly attack-minded protected list - I think only Petersen, Turner, and McClernon are not primarily attacking players.

Best available: Viggiano, Tymrak

Good positional picks: Jonsdottir, Riley

Louisville

Actual list:

Gemma Bonner Kristen Davis (College Protected Player) Emina Ekic Emily Fox Cece Kizer Katie Lund Nadia Nadim Freja Olofsson Ebony Salmon

I did pretty poorly on this one - 5/9 - guessing that McCaskill, Nagasato, Riehl, and Milliet would be protected instead of Davis, Ekic, Lund, and Olofsson.

Look, the second you left McCaskill unprotected, half of the protected list didn't matter anyway - there's practically no risk of Milliet being taken if McCaskill is available, and unless San Diego is already saturated with unannounced midfielders and forwards and in desperate need of a center back (seems...unlikely), very little chance of Riehl being taken either. Nagasato is probably similar in terms of quality, but with a nine-year age difference, I think McCaskill would still be the choice over her.

Davis seems to be a pretty good college player, I can't complain about protecting a solid hometown player like Ekic, and if San Diego has picks to burn, Lund has shown that she can be a very good backup goalkeeper. I don't really get protecting Olofsson, but do acknowledge that Louisville values her more highly than I would, since she had the fourth-most minutes played on the team this season.

I really cannot get over how insane it is to leave McCaskill unprotected unless she asked to be, and I also cannot get over how stupid you have to be to create an environment so toxic that players like her would ask to be left unprotected.

For a team that has only really existed for a year, Louisville holds a lot of "(playing rights)" - see previous bullet point.

Best available: McCaskill

Good positional picks: Nagasato, Matthews, Riehl, playing rights to any of Beckie, Foord, Heath, and Kennedy that you seriously think you'll be able to sign

Dash

Actual list:

Jane Campbell Rachel Daly Makamae Gomera-Stevens Shea Groom Haley Hanson Katie Naughton Nichelle Prince Maria Sanchez  Gabby Seiler

I didn't do great on this one either - 6/9 - guessing that Mewis, Chapman, and Oyster would be protected instead of Campbell, Gomera-Stevens, and Sanchez.

Well, I guess Kristie Mewis will not be playing for the Dash next year. With how much money both teams have spent already, I'm not sure either of them will be willing to part with $150K to get her, but I also don't think it would be the worst idea in the world. Giving up $150K for Campbell when both teams already have clear starting goalkeepers (and when I'm reasonably certain Campbell doesn't draw $150K in a trade) would, on the other hand, be a genuinely horrible idea, so I don't think the Dash protects Campbell over Mewis unless Mewis has indicated that she has no interest in playing for them in the future.

Knowing that Sanchez is the international player that the Dash had agreed to terms with but not announced, protecting her makes a lot of sense - I thought she was pretty impressive in her few appearances with them over the summer, and while Chapman is a fantastic left back, she's also in her thirties (so she's possibly less willing to make a move that she doesn't want to), and Canadian (so she's more likely than American players to be willing/able to play in Europe if her choice in the NWSL is taken away), both of which make her a riskier bet for the expansion teams. Also, lol @ the Dash saying "a contracted international player" and then having to give the name to the NWSL, surely knowing that the NWSL would use the actual name.

The really interesting choice here is protecting Gomera-Stevens over both Chapman and Oyster. Gomera-Stevens is young (22), seems to be positionally versatile, and got some good minutes during the Olympic period, but has barely seen the field when the team is at full strength. At 29, Oyster isn't yet old enough that the team has to be thinking about replacing her in the short-to-medium term, and she's been a really good defensive player for them the last couple of seasons (despite being briefly supplanted by Abby Dahlkemper), and both expansion teams are in need of defenders. I think this is another signal that Mewis is likely not going to be with the team next season, regardless of whether she gets taken in the expansion draft - although she's designated as a forward, and that's mostly where she played when she started during the Olympic period, since then she has often come off the bench to replace a midfielder (including Mewis), and was referred to as a midfielder in the initial announcement of her signing, so I'd guess that she's being protected in order to shore up an attacking roster that might be losing one of its best players.

Best available: Mewis, Oyster

Good positional picks: Chapman, Harris, Latsko, Spencer. Honestly, there's a lot of good choices available, and it's difficult to pare this list down - there's a few other players that I haven't listed that also wouldn't be bad choices, but I felt like I should keep this at a total of six players.

Thorns

Actual list:

Bella Bixby Crystal Dunn Lindsey Horan Natalia Kuikka Emily Menges Olivia Moultrie Raquel Rodriguez Sophia Smith Morgan Weaver

I went 8/9 on these picks, guessing that Salem would be protected instead of Moultrie.

Moultrie is honestly a surprise here - while she's good, I don't think she's starting quality right now (which expansion teams typically need, and Portland does have several starting-quality players unprotected), and given her age, I might think that these teams wouldn't want to deal with any additional complications that employing a minor might entail. I actually wouldn't be surprised if this was one of the terms of her contract, either at her/her parents' request, or as part of the league's policy for minor players (and while I'm sure it would be good for minors to have this type of policy, if it is a league mandate, I'm confident it's because the league thought it would deter the Thorns from actually signing her).

The Thorns have protection from Angel City, and there are also reports that there is an unfinalized deal between the Thorns and the Wave in which the Thorns would give the Wave Christen Westphal and Amirah Ali's rights, and the Wave would give the Thorns expansion draft protection plus allocation money. This doesn't make a whole lot of sense to me - apparently it's to protect the "core" of the Thorns' roster, but I don't know that any of the available core players would be that attractive to the Wave - Sinclair, Sauerbrunn, and Klingenberg are all in their mid- or late-thirties, and seem fairly settled in Portland, and while Salem (also in her mid-thirties) would generally be a good pick, it also seems like there are rumors that she might be retiring or leaving the team for other reasons. If that's just rumor, then maybe I can see this trade, but at this point, why not just see who does get taken and then, if necessary, trade back for them - if they would take Westphal and Ali for allocation money and expansion protection now, why wouldn't they take Westphal and Ali for allocation money and their expansion pick next week?

Best available: Salem

Good positional picks: Westphal, Ali's rights, Klingenberg, Ryan, Abby Smith. There's almost an embarrassment of riches here, even moreso than the Dash.

Reign

Actual list:

Bethany Balcer Alana Cook Angelina Jessica Fishlock Sofia Huerta Rose Lavelle (U.S. Federation Player) Quinn (CAN Federation Player) Phallon Tullis-Joyce Ally Watt

I went 7/9 on these picks, guessing that McNabb and Weatherholt would be protected rather than Tullis-Joyce and Watt.

I'm not super surprised about either of those omissions - McNabb has been good enough to start most games at left back since Harvey joined, but she hasn't been a standout, and Weatherholt plays the same position as Quinn, who is the starter at it and is protected.

Watt especially I think is a good choice for protection - she was really hyped up when she first joined the league, she's young, and she seems to be on track for an outstanding return from an extended injury absence.

Tullis-Joyce is more of a surprise, since she had only one appearance with the Reign (and essentially only for stoppage time in that one), but a Reign coach did make a statement that day that they wanted to get her some minutes so I guess she is, at least for the moment, their top goalkeeping option. She also has good professional experience, with dozens of appearances for French club Stade de Reims before she signed for the Reign.

Best available: King, Weatherholt

Good positional picks: Barnes, Dederick, Hammond, McNabb