Theorems · Definition · commutative algebra
EuclideanDomain.gcd
- #69 of the 100 theorems: Greatest Common Divisor Algorithm
{R : Type u} → [EuclideanDomain R] → [DecidableEq R] → R → R → Rgcd a b is a (non-unique) element such that gcd a b ∣ a gcd a b ∣ b, and for
any element c such that c ∣ a and c ∣ b, then c ∣ gcd a b
- Defined in
- Mathlib.Algebra.EuclideanDomain.Defs
- Cited by
- 39 results in Mathlib
- Foundations
- Depth 14 from the axioms · uses no axioms
- Assumes
- EuclideanDomainDecidableEq
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites1
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- EuclideanDomainstatement and proof · cited by 124
Cited by41
Results whose statement or proof uses this declaration.
- EuclideanDomain.lcmproof · cited by 8
- EuclideanDomain.gcd_dvdstatement and proof · cited by 8
- EuclideanDomain.gcd_zero_leftstatement · cited by 7
- EuclideanDomain.gcd_dvd_rightstatement · cited by 6
- EuclideanDomain.gcd_valstatement and proof · cited by 5
- EuclideanDomain.gcd_eq_zero_iffstatement and proof · cited by 4
- EuclideanDomain.gcd_dvd_leftstatement · cited by 3
- EuclideanDomain.gcd_eq_gcd_abstatement and proof · cited by 2
- EuclideanDomain.gcd_eq_leftstatement and proof · cited by 2
- EuclideanDomain.gcd_zero_rightstatement and proof · cited by 2
- Polynomial.gcd_mapstatement and proof · cited by 2
- Polynomial.root_left_of_root_gcdstatement and proof · cited by 2