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Commit
2021-02-16 09:30
dc917df7
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feat(category/limits/shapes/zero): lemmas about is_isomorphic 0 (
#6251
)
Estimated changes
Modified
src/category_theory/limits/shapes/zero.lean
added
def
category_theory.limits.iso_of_is_isomorphic_zero
added
theorem
category_theory.limits.zero_of_source_iso_zero'
added
theorem
category_theory.limits.zero_of_target_iso_zero'