Andrew Tedder
@tedder.bsky.social
Philosopher. Logician. Canadian in Germany. Cat Admirer. SFF enthusiast. He/Him. Black Lives Matter. Trans rights!
Pinned
Andrew Tedder
@tedder.bsky.social
· Dec 5
Topics in Relevant Logic: A Semantic Perspective - Erkenntnis
This paper concerns the interface between relevant logics and recent developments in semantics for hyperintensional operators. In the latter area, the notion of topicality or aboutness has begun to pl...
link.springer.com
Coming back to Bluesky after a break, let me advertise a recent paper of mine I'm quite proud of! In this paper, I propose a way to read topics off of a space of propositions forming an algebra, and tie this in to a topical reading of relevance in logic:
link.springer.com/article/10.1...
link.springer.com/article/10.1...
I have another very minor achievement to brag about - after months of trying, I managed to beat all bosses in elden ring (+dlc) solo. Can I put this on my cv?
November 9, 2025 at 2:01 PM
I have another very minor achievement to brag about - after months of trying, I managed to beat all bosses in elden ring (+dlc) solo. Can I put this on my cv?
Happy to be back in Vienna for a workshop on modalities and quantifiers -- my focus will be on the former, but we are starting out with talks on the latter!
events.ceu.edu/2025-09-18/m...
events.ceu.edu/2025-09-18/m...
Modalities and Quantification in Reasoning
events.ceu.edu
September 18, 2025 at 10:07 AM
Happy to be back in Vienna for a workshop on modalities and quantifiers -- my focus will be on the former, but we are starting out with talks on the latter!
events.ceu.edu/2025-09-18/m...
events.ceu.edu/2025-09-18/m...
Unseeded naneinf and ante 38 today
September 1, 2025 at 2:30 PM
Unseeded naneinf and ante 38 today
Another minor achievement - a soul level 1 run completed in Dark Souls
August 4, 2025 at 10:41 AM
Another minor achievement - a soul level 1 run completed in Dark Souls
This zine on being trans in philosophy is a must-read for anyone with a foot in academic philosophy, and should-read for everyone.
being.transinphilosophy.org
being.transinphilosophy.org
Being Trans in Philosophy
Trans people and our loved ones are not okay—in, with, and because of academic philosophy. Being Trans in Philosophy is a zine collecting first-personal accounts of what it’s actually like to be trans...
being.transinphilosophy.org
June 22, 2025 at 11:00 AM
This zine on being trans in philosophy is a must-read for anyone with a foot in academic philosophy, and should-read for everyone.
being.transinphilosophy.org
being.transinphilosophy.org
You know what they say: If it ain't baroque, then... it might be rococo... idk...
May 16, 2025 at 7:58 PM
You know what they say: If it ain't baroque, then... it might be rococo... idk...
Another small victory
April 20, 2025 at 9:29 PM
Another small victory
A small victory is still a victory!
April 9, 2025 at 3:26 PM
A small victory is still a victory!
Wayward thought: in non-paraconsistent logics, contradictions behave like thought-terminating clichés
April 7, 2025 at 1:54 AM
Wayward thought: in non-paraconsistent logics, contradictions behave like thought-terminating clichés
My rad colleague Sara Ayhan @sara-ayhan.bsky.social is editing a special issue on feminist logic -- check the cfp at the link!
Synthese has a cfp for a collection on Feminist Logic, edited by Sara Ayhan
link.springer.com/collections/...
link.springer.com/collections/...
Feminist Logic
Feminist Logic examines intersections of formal logic and feminist philosophy. As such it challenges
traditional conceptions both of feminism and of logic. ...
link.springer.com
March 25, 2025 at 1:07 PM
My rad colleague Sara Ayhan @sara-ayhan.bsky.social is editing a special issue on feminist logic -- check the cfp at the link!
Reposted by Andrew Tedder
Even in dark times, it’s important to remember that there’s still beauty to be found and celebrated.
On Sunday, a Flamin’ Hot Cheeto shaped like the Pokémon Charizard sold at auction for $87,840.
Pokémon-shaped Cheeto sells at auction for nearly $88,0000
The Charizard-shaped Flamin' Hot Cheeto, nicknamed "Cheetozard," was initially discovered and preserved sometime between 2018 and 2022, auction house Goldin said.
www.nbcnews.com
March 6, 2025 at 2:03 AM
Even in dark times, it’s important to remember that there’s still beauty to be found and celebrated.
You know what I'm sick of? Having no way of obtaining my means of subsistence besides selling my labour power to whoever I can convince to buy it for whatever I can convince them to give me for it...
March 1, 2025 at 3:35 PM
You know what I'm sick of? Having no way of obtaining my means of subsistence besides selling my labour power to whoever I can convince to buy it for whatever I can convince them to give me for it...
Question that came up during dnd today (legitimately, I promise): ``Does the axiom of choice hold in this world?"
February 9, 2025 at 8:00 PM
Question that came up during dnd today (legitimately, I promise): ``Does the axiom of choice hold in this world?"
Looking for only the newest, spiciest directions in Relevant Logic? Look no further! I'm glad to see this collection out in the wild
I'm happy to say that New Directions in Relevant Logic has been published!
link.springer.com/book/10.1007...
link.springer.com/book/10.1007...
New Directions in Relevant Logic
This book brings together contemporary work on relevant logics to showcase the recent progress of the field and set the stage for future research.
link.springer.com
January 31, 2025 at 5:05 PM
Looking for only the newest, spiciest directions in Relevant Logic? Look no further! I'm glad to see this collection out in the wild
Reposted by Andrew Tedder
I'm happy to say that New Directions in Relevant Logic has been published!
link.springer.com/book/10.1007...
link.springer.com/book/10.1007...
New Directions in Relevant Logic
This book brings together contemporary work on relevant logics to showcase the recent progress of the field and set the stage for future research.
link.springer.com
January 31, 2025 at 4:46 PM
I'm happy to say that New Directions in Relevant Logic has been published!
link.springer.com/book/10.1007...
link.springer.com/book/10.1007...
Is there a prime number such that all greater primes are lonely 🥺?
January 15, 2025 at 5:47 PM
Is there a prime number such that all greater primes are lonely 🥺?
Have been reading a fascinating book about fungus, and am intrigued by the properties of:
January 12, 2025 at 9:12 AM
Have been reading a fascinating book about fungus, and am intrigued by the properties of:
Reposted by Andrew Tedder
I see this quoted a lot. But it seems out of date. The most prominent contemporary conservatives have abandoned the task of (spurious) moral justification and have turned to the campaign to belittle, humiliate, and maybe even bankrupt, anyone who questions or opposes them in any way.
This is a good description of the GOP:
The modern conservative is engaged in one of man's oldest, best financed, most applauded and, on the whole, least successful exercises in moral philosophy. That is the search for a truly superior moral justification for selfishness.
~ John Kenneth Galbraith
The modern conservative is engaged in one of man's oldest, best financed, most applauded and, on the whole, least successful exercises in moral philosophy. That is the search for a truly superior moral justification for selfishness.
~ John Kenneth Galbraith
January 11, 2025 at 10:56 AM
I see this quoted a lot. But it seems out of date. The most prominent contemporary conservatives have abandoned the task of (spurious) moral justification and have turned to the campaign to belittle, humiliate, and maybe even bankrupt, anyone who questions or opposes them in any way.
Jet lag going east is bad for me - much worse when trying to recover in Norway in winter
January 10, 2025 at 11:37 AM
Jet lag going east is bad for me - much worse when trying to recover in Norway in winter
What is virtue grounded in? I.e., in virtue of what is virtuousness?
January 7, 2025 at 7:23 AM
What is virtue grounded in? I.e., in virtue of what is virtuousness?
New year, new paper alert! My "Negated Implications in Connexive Relevant Logics" investigates logics which expand (fragments of) relevant logics by connexive principles, such as Aristotle's thesis (no formula is implied by, or implies, its own negation). Interesting results ensue!
January 2, 2025 at 1:36 AM
New year, new paper alert! My "Negated Implications in Connexive Relevant Logics" investigates logics which expand (fragments of) relevant logics by connexive principles, such as Aristotle's thesis (no formula is implied by, or implies, its own negation). Interesting results ensue!
Reposted by Andrew Tedder
Agreed. And if the ending isn’t quite cathartic enough you can always follow it up with the “lost ending” SNL sketch where the townspeople form a mob and beat the shit out of Old Man Potter.
If you’ve never watched It’s a Wonderful Life give it a go. It’s not schmaltzy. It’s raw. It’s very 2024. About the little guy against the machine. Humans against economies. About why we matter. About the difference a life can make. About why we should stay alive.
December 24, 2024 at 6:33 PM
Agreed. And if the ending isn’t quite cathartic enough you can always follow it up with the “lost ending” SNL sketch where the townspeople form a mob and beat the shit out of Old Man Potter.
Reposted by Andrew Tedder
Thomas Ferguson, Shay Logan, Jitka Kadlecikova, and I are editing a special issue of Journal of Logic, Language, and Information on the theme "Variable-Sharing Properties (and Their Discontents)". Submission deadline is April 30, 2025.
link.springer.com/collections/...
link.springer.com/collections/...
Variable-Sharing Properties (and Their Discontents)
We invite submissions for papers including research that addresses, but is not limited to, the following themes: theoretical foundations of variable sharing ...
link.springer.com
December 19, 2024 at 1:58 PM
Thomas Ferguson, Shay Logan, Jitka Kadlecikova, and I are editing a special issue of Journal of Logic, Language, and Information on the theme "Variable-Sharing Properties (and Their Discontents)". Submission deadline is April 30, 2025.
link.springer.com/collections/...
link.springer.com/collections/...
Just took the pleasure of citing the League of Extraordinary Gentlemen (comics!) in a logic paper in preparation. Sometimes life has fun things in it :)
December 10, 2024 at 11:10 AM
Just took the pleasure of citing the League of Extraordinary Gentlemen (comics!) in a logic paper in preparation. Sometimes life has fun things in it :)