Finset.erase

{α : Type u_1} → [DecidableEq α] → Finset α → α → Finset α

erase s a is the set s - {a}, that is, the elements of s which are not equal to a.

Defined in: Mathlib.Data.Finset.Erase
Cited by: 455 results in Mathlib
Foundations: Depth 27 from the axioms, rests on 306 definitions · uses propext, Classical.choice, Quot.sound
Assumes: DecidableEq

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