Theorems · Theorem · ring theory

SkewPolynomial.support_update

∀ {R : Type u_1} [inst : Semiring R] (p : SkewPolynomial R) (n : ℕ) (a : R) [inst_1 : DecidableEq R],
  (p.update n a).support = if a = 0 then p.support.erase n else insert n p.support

Defined in

Mathlib.Algebra.SkewPolynomial.Basic

Cited by

1 results in Mathlib

Foundations

Depth 78 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

SemiringDecidableEq