Set.mulIndicator

{α : Type u_1} → {M : Type u_3} → [One M] → Set α → (α → M) → α → M

Set.mulIndicator s f a is f a if a ∈ s, 1 otherwise.

Defined in: Mathlib.Algebra.Notation.Indicator
Cited by: 163 results in Mathlib
Foundations: Depth 13 from the axioms, rests on 62 definitions · uses propext, Classical.choice, Quot.sound
Assumes: One

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