Theorems · Theorem · ring theory
add_idem
∀ {α : Type u_1} [inst : IdemSemiring α] (a : α), a + a = a- Defined in
- Mathlib.Algebra.Order.Kleene
- Cited by
- 1 results in Mathlib
- Foundations
- Depth 13 from the axioms · uses propext
- Assumes
- IdemSemiring
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites3
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- sup_of_le_leftproof · cited by 218
- IdemSemiringstatement and proof · cited by 12
- add_eq_supproof · cited by 6
Cited by1
Results whose statement or proof uses this declaration.
- natCast_eq_oneproof · cited by 1