def definition def or abbrev

`posInv`

No prose has been written for this declaration yet. The Lean source and graph data below render without it.

formal statement (Lean)

 739noncomputable def posInv (x : PosReal) : PosReal :=

Definition body.

 740  ⟨x.1⁻¹, inv_pos.mpr x.2⟩
 741
 742/-- Distinguished positive constants used to close the automorphism proof. -/

From the project-wide theorem graph. These declarations reference this one in their body.

continuous_bijective_preserves_J_eq_id_or_inv in IndisputableMonolith.Algebra.CostAlgebra decl_use
eq_id_of_map_two_eq_two in IndisputableMonolith.Algebra.CostAlgebra decl_use
eq_id_or_reciprocal in IndisputableMonolith.Algebra.CostAlgebra decl_use
eq_self_or_inv in IndisputableMonolith.Algebra.CostAlgebra decl_use
posInv_half in IndisputableMonolith.Algebra.CostAlgebra decl_use
posInv_inv in IndisputableMonolith.Algebra.CostAlgebra decl_use
posInv_one in IndisputableMonolith.Algebra.CostAlgebra decl_use
posInv_two in IndisputableMonolith.Algebra.CostAlgebra decl_use
reciprocal in IndisputableMonolith.Algebra.CostAlgebra decl_use
reciprocal_ne_id in IndisputableMonolith.Algebra.CostAlgebra decl_use
two_mul_inv_eq_two_mul_iff in IndisputableMonolith.Algebra.CostAlgebra decl_use
two_mul_inv_ne_inv_two_mul in IndisputableMonolith.Algebra.CostAlgebra decl_use

Lean names referenced from this declaration's body.