Theorems · Theorem · commutative algebra
Finset.gcd_eq_gcd_filter_ne_zero
∀ {α : Type u_2} {β : Type u_3} [inst : CommMonoidWithZero α] [inst_1 : NormalizedGCDMonoid α] {s : Finset β}
{f : β → α} [inst_2 : DecidablePred fun x => f x = 0], s.gcd f = {x ∈ s | f x ≠ 0}.gcd f- Defined in
- Mathlib.Algebra.GCDMonoid.Finset
- Cited by
- 0 results in Mathlib
- Foundations
- Depth 62 from the axioms · uses propext, Classical.choice, Quot.sound
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Cites17
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- Finsetstatement and proof · cited by 13,712
- Finset.filterstatement and proof · cited by 949
- CommMonoidWithZerostatement and proof · cited by 913
- Finset.induction_onproof · cited by 167
- Finset.filter_congrproof · cited by 167
- NormalizedGCDMonoidstatement and proof · cited by 159
- GCDMonoid.gcdproof · cited by 143
- Finset.gcdstatement and proof · cited by 49
- Finset.filter_emptyproof · cited by 23
- Finset.filter_union_filter_not_eqproof · cited by 16
- normalize_zeroproof · cited by 16
- Finset.filter_insertproof · cited by 14
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