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Commit 2021-01-15 02:19 7151fb70

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chore(data/equiv/basic): equiv/perm_congr simp lemmas (#5737)

Estimated changes

Modified src/data/equiv/basic.lean

added theorem equiv.equiv_congr_refl_left

added theorem equiv.equiv_congr_refl_right

added theorem equiv.perm_congr_def

added theorem equiv.perm_congr_symm

added theorem equiv.perm_congr_symm_apply