Definition df-bj-ccinfty 32276

Description: Definition of the circle at infinity ℂ_∞. (Contributed by BJ, 22-Jun-2019.) The precise definition is irrelevant and should generally not be used. (New usage is discouraged.)

Assertion

Ref	Expression
df-bj-ccinfty	⊢ ℂ∞ = ran inftyexpi

Detailed syntax breakdown of Definition df-bj-ccinfty

Step	Hyp	Ref	Expression
1		cccinfty 32275	. 2 class ℂ∞
2		cinftyexpi 32270	. . 3 class inftyexpi
3	2	crn 5039	. 2 class ran inftyexpi
4	1, 3	wceq 1475	1 wff ℂ∞ = ran inftyexpi

This definition is referenced by:  bj-ccinftydisj  32277  bj-elccinfty  32278  bj-minftyccb  32289