Def category_theory.limits.pullback_pullback_left_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_pullback_left_is_pullbackView on Github →