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Def
category_theory.limits.pullback_assoc_symm_is_pullback
Modification history
2021-12-13 07:52
src/category_theory/limits/shapes/pullbacks.lean
feat(category_theory/limits): The associativity of pullbacks and pushouts. (#10619) …
Added
category_theory.limits.pullback_assoc_symm_is_pullback
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