Definition df-bj-ccinftyN

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

	Ref	Expression
Assertion	df-bj-ccinftyN	$$⊢{ℂ}_{\infty N}$$

Detailed syntax breakdown

Step	Hyp	Ref	Expression
0		cccinftyN	$$class{ℂ}_{\infty N}$$
1		cinftyexpitau	$$class{\mathrm{+\infty e}}^{i\tau }$$
2	1	crn	$$class\mathrm{ran}{\mathrm{+\infty e}}^{i\tau }$$
3	0 2	wceq	$$wff{ℂ}_{\infty N}$$