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Elementary topos nonsense #411

Merged
merged 14 commits into from
Mar 17, 2025
Merged

Elementary topos nonsense #411

merged 14 commits into from
Mar 17, 2025

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plt-amy
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@plt-amy plt-amy commented Jul 19, 2024

watch this space but not too closely

@Lavenza
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Lavenza commented Jul 19, 2024 •
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@plt-amy
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plt-amy commented Jul 19, 2024

oh, she's alive!

@TOTBWF
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TOTBWF commented Jan 10, 2025

What needs to be done to take this out of draft status? Working on injective objects right now, and I'd like to show that every subobject classifier is injective 🙂

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plt-amy commented Jan 10, 2025

I guess what's here is mostly done, there's just not a lot of it

@plt-amy plt-amy force-pushed the aliao/elementary-topoi branch 3 times, most recently from 9fdee2c to 106ce8c Compare March 7, 2025 14:01
@plt-amy plt-amy changed the base branch from main to aliao/no-biimp March 7, 2025 14:01
Base automatically changed from aliao/no-biimp to main March 7, 2025 17:38
@plt-amy plt-amy force-pushed the aliao/elementary-topoi branch from 23a1e6c to 1c9be5c Compare March 7, 2025 17:39
@plt-amy plt-amy marked this pull request as ready for review March 7, 2025 18:06
@plt-amy plt-amy changed the title wip: elementary topos nonsense Elementary topos nonsense Mar 7, 2025
@plt-amy plt-amy requested review from TOTBWF and ncfavier March 7, 2025 18:08
@plt-amy plt-amy force-pushed the aliao/elementary-topoi branch from 297f881 to 376903d Compare March 7, 2025 18:11
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TOTBWF requested changes Mar 7, 2025
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Looks great, only have a couple of minor nits.

It would also be cool to prove that the displayed category of subobjects has a skeletal generic object iff it has a subobject classifier, but that could be done in a separate PR.

@plt-amy plt-amy requested a review from TOTBWF March 11, 2025 14:59
TOTBWF
TOTBWF previously approved these changes Mar 11, 2025
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@plt-amy plt-amy force-pushed the aliao/elementary-topoi branch 2 times, most recently from 27bd698 to d91abf6 Compare March 17, 2025 12:28
@plt-amy plt-amy changed the base branch from main to aliao/dots March 17, 2025 12:29
Base automatically changed from aliao/dots to main March 17, 2025 12:40
@plt-amy plt-amy force-pushed the aliao/elementary-topoi branch from d91abf6 to 5478063 Compare March 17, 2025 13:45
@plt-amy plt-amy merged commit 8a20dfc into main Mar 17, 2025
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@plt-amy plt-amy deleted the aliao/elementary-topoi branch March 17, 2025 23:13
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@TOTBWF TOTBWF TOTBWF approved these changes

@ncfavier ncfavier Awaiting requested review from ncfavier

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3 participants
@plt-amy @Lavenza @TOTBWF