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Commit 2020-08-19 11:58 1e677e66

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chore(data/finset/basic): use finset.map in sigma_eq_bind (#3857)

Estimated changes

Modified src/algebra/big_operators/basic.lean

Modified src/data/finset/basic.lean

modified theorem finset.sigma_eq_bind

Modified src/logic/embedding.lean

added theorem function.embedding.coe_sigma_mk

added def function.embedding.sigma_mk