Theorems · Theorem · category theory
CommGrpCat.isZero_of_subsingleton
∀ (G : CommGrpCat) [Subsingleton ↑G], CategoryTheory.Limits.IsZero G
- Defined in
- Mathlib.Algebra.Category.Grp.Zero
- Cited by
- 2 results in Mathlib
- Foundations
- Depth 20 from the axioms · uses propext, Quot.sound
- Assumes
- Subsingleton
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites9
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- DFunLike.coeproof · cited by 62,936
- Quiver.Homproof · cited by 32,603
- map_oneproof · cited by 861
- CategoryTheory.Limits.IsZerostatement · cited by 306
- MonoidHom.extproof · cited by 109
- CommGrpCatstatement and proof · cited by 74
- CommGrpCat.carrierstatement and proof · cited by 59
- CommGrpCat.Hom.homproof · cited by 26
- CommGrpCat.hom_extproof · cited by 2
Cited by2
Results whose statement or proof uses this declaration.
- CommGrpCat.isZero_iff_subsingletonproof · cited by 1
- CommGrpCat.subsingleton_of_isZeroproof · cited by 1