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Commit 2021-02-20 17:42 f0aad503

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feat(data/equiv/basic): injective iff injective after composing with equiv (#6283)

Estimated changes

Modified src/data/equiv/basic.lean

added theorem equiv.bijective_comp

added theorem equiv.comp_bijective

added theorem equiv.comp_injective

added theorem equiv.comp_surjective

added theorem equiv.injective_comp

added theorem equiv.surjective_comp

Modified src/logic/function/basic.lean

added theorem function.bijective.of_comp_iff'

added theorem function.bijective.of_comp_iff

added theorem function.injective.of_comp_iff'

added theorem function.injective.of_comp_iff

added theorem function.surjective.of_comp_iff'

added theorem function.surjective.of_comp_iff