Pi.mulSingle

{ι : Type u_1} → {M : ι → Type u_6} → [(i : ι) → One (M i)] → [DecidableEq ι] → (i : ι) → M i → (j : ι) → M j

The function supported at i, with value x there, and 1 elsewhere.

Defined in: Mathlib.Algebra.Notation.Pi.Basic
Cited by: 111 results in Mathlib
Foundations: Depth 7 from the axioms, rests on 18 definitions · uses no axioms
Assumes: One DecidableEq

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