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Theorem prod_eq_of_perm

Modification history

2017-08-28 18:34
algebra/big_operators.lean
feat(data/finset): add fold; add simp rules for insert, empty, singleton and mem
Deleted prod_eq_of_permView on Github →
2017-08-27 20:58
algebra/big_operators.lean
feat(algebra): add small theory of big operators on commutative monoids
Added prod_eq_of_permView on Github →