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Commit 2022-03-03 07:35 9f721bab

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chore(logic/function/basic): add function.ne_iff (#12288)

Estimated changes

Modified src/data/fun_like/basic.lean

added theorem fun_like.ne_iff

Modified src/logic/function/basic.lean

modified theorem function.funext_iff

added theorem function.ne_iff