Theorem Finset.prod_preimage

Modification history

2024-03-25 07:55

Mathlib/Algebra/BigOperators/Basic.lean

chore: Make `Finset.preimage` not depend on `Finset.sum` (#11601) …

Modified Finset.prod_preimage View on Github →

2023-01-21 16:19

Mathlib/Data/Finset/Preimage.lean

feat: port Data.Finset.Preimage (#1746)

Added Finset.prod_preimage View on Github →