Theorems · Theorem · ring theory
star_one
∀ (R : Type u) [inst : MulOneClass R] [inst_1 : StarMul R], star 1 = 1
- Defined in
- Mathlib.Algebra.Star.Basic
- Cited by
- 33 results in Mathlib
- Foundations
- Depth 19 from the axioms · uses propext, Quot.sound
- Assumes
- MulOneClassStarMul
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites7
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- Star.starstatement and proof · cited by 1,082
- MulOneClassstatement and proof · cited by 1,018
- StarMulstatement and proof · cited by 195
- MulOpposite.op_injectiveproof · cited by 37
- starMulEquivproof · cited by 7
- MulOpposite.op_oneproof · cited by 2
- MulEquiv.map_oneproof · cited by 2
Cited by33
Results whose statement or proof uses this declaration.
- NormedSpace.star_expproof · cited by 4
- HasDerivAt.star_conjproof · cited by 3
- IsSelfAdjoint.oneproof · cited by 3
- algebraMap_star_commproof · cited by 3
- CStarRing.norm_oneproof · cited by 3
- Matrix.conjTranspose_oneproof · cited by 2
- LinearMap.toMatrix'_intrinsicStarproof · cited by 2
- Matrix.posDef_diagonal_iffproof · cited by 2
- star_invOfproof · cited by 2
- IsUnit.star_right_conjugate_nonneg_iffproof · cited by 2
- Matrix.conjTranspose_permMatrixproof · cited by 1
- Matrix.PosDef.diag_posproof · cited by 1