[Merged by Bors] - refactor: weaken HasPullbacks to HasPullback in MorphismProperty.Limits#29812
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Jlh18 wants to merge 16 commits intoleanprover-community:masterfrom
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[Merged by Bors] - refactor: weaken HasPullbacks to HasPullback in MorphismProperty.Limits#29812Jlh18 wants to merge 16 commits intoleanprover-community:masterfrom
Jlh18 wants to merge 16 commits intoleanprover-community:masterfrom
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PR summary 108075f42aImport changes for modified filesNo significant changes to the import graph Import changes for all files
Declarations diff
You can run this locally as follows## summary with just the declaration names:
./scripts/declarations_diff.sh <optional_commit>
## more verbose report:
./scripts/declarations_diff.sh long <optional_commit>The doc-module for No changes to technical debt.You can run this locally as
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Thanks! bors merge |
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Oct 15, 2025
…Adjuction (#29810) This PR replaces the global assumption of `HasPullback T` with the weaker assumption that pullbacks exist along the morphism only. For the sake of readability I also moved the variable `(f : X -> Y)` into the statement of each theorem. As instructed in #29795 (comment) - [ ] depends on: #29795 - [ ] depends on: #29812 Co-authored-by: jlh18 <josephhua73@yahoo.com>
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Oct 24, 2025
…Adjuction (leanprover-community#29810) This PR replaces the global assumption of `HasPullback T` with the weaker assumption that pullbacks exist along the morphism only. For the sake of readability I also moved the variable `(f : X -> Y)` into the statement of each theorem. As instructed in leanprover-community#29795 (comment) - [ ] depends on: leanprover-community#29795 - [ ] depends on: leanprover-community#29812 Co-authored-by: jlh18 <josephhua73@yahoo.com>
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Nov 7, 2025
…ts (leanprover-community#29812) The `HasPullbacks` instance on a category `C` for defining the `baseChange` / pullback functor along a map `f : X -> Y` between their over categories can be weakened to just a `HasPullback` condition on `f`. - [ ] depends on: leanprover-community#29795 Co-authored-by: jlh18 <josephhua73@yahoo.com>
BeibeiX0
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Nov 7, 2025
…Adjuction (leanprover-community#29810) This PR replaces the global assumption of `HasPullback T` with the weaker assumption that pullbacks exist along the morphism only. For the sake of readability I also moved the variable `(f : X -> Y)` into the statement of each theorem. As instructed in leanprover-community#29795 (comment) - [ ] depends on: leanprover-community#29795 - [ ] depends on: leanprover-community#29812 Co-authored-by: jlh18 <josephhua73@yahoo.com>
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The
HasPullbacksinstance on a categoryCfor defining thebaseChange/ pullback functor along a mapf : X -> Ybetween their over categories can be weakened to just aHasPullbackcondition onf.