Theorems · Theorem · number theory
Int.isUnit_eq_one_or
∀ {u : ℤ}, IsUnit u → u = 1 ∨ u = -1- Defined in
- Mathlib.Algebra.Group.Int.Units
- Cited by
- 6 results in Mathlib
- Foundations
- Depth 37 from the axioms · uses propext, Classical.choice
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites2
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- IsUnitstatement and proof · cited by 1,602
- Int.natAbs_of_isUnitproof · cited by 11
Cited by6
Results whose statement or proof uses this declaration.
- Int.units_eq_one_orproof · cited by 20
- Int.isUnit_iffproof · cited by 9
- ZMod.coe_int_mul_inv_eq_oneproof · cited by 2
- Int.isUnit_ne_iff_eq_negproof · cited by 2
- Int.eq_one_or_neg_one_of_mul_eq_neg_one'proof · cited by 2
- Int.isUnit_mul_selfproof · cited by 1