Theorems · Definition · logic and foundations
Classical.decEq
(α : Sort u_2) → DecidableEq α
Any type α has decidable equality classically.
- Defined in
- Mathlib.Logic.Basic
- Cited by
- 134 results in Mathlib
- Foundations
- Depth 12 from the axioms, rests on 48 definitions · uses propext, Classical.choice, Quot.sound
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites0
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
Nothing in Mathlib beyond the foundations.
Cited by134
Results whose statement or proof uses this declaration.
- LinearMap.det_toMatrixproof · cited by 37
- MvPowerSeries.coeff_mulproof · cited by 22
- Finset.sum_filter_add_sum_filter_notproof · cited by 20
- Polynomial.rootSet_defproof · cited by 12
- MvPolynomial.vars_defproof · cited by 11
- MvPolynomial.support_monomialproof · cited by 10
- MvPolynomial.degrees_defproof · cited by 8
- Matrix.det_of_isUpperTriangularproof · cited by 8
- Algebra.norm_localizationproof · cited by 8
- Finset.card_biUnion_leproof · cited by 8
- MvPolynomial.degreeOf_defproof · cited by 7
- Submodule.fg_of_fg_map_of_fg_inf_kerproof · cited by 7