Mathlib v3 is deprecated. Go to Mathlib v4

Theorem function.funext_iff

Modification history

2022-03-03 07:35
src/logic/function/basic.lean
chore(logic/function/basic): add function.ne_iff (#12288)
Modified function.funext_iffView on Github →
2018-03-07 13:46
logic/function.lean
feat(logic/function): add hfunext and funext_iff
Added function.funext_iffView on Github →