Definition df-c

Description: Define the set of complex numbers. The 23 axioms for complex numbers start at axresscn . (Contributed by NM, 22-Feb-1996) (New usage is discouraged.)

	Ref	Expression
Assertion	df-c	$$⊢ℂ=𝑹\times 𝑹$$

Detailed syntax breakdown

Step	Hyp	Ref	Expression
0		cc	$$classℂ$$
1		cnr	$$class𝑹$$
2	1 1	cxp	$$class\left(𝑹\times 𝑹\right)$$
3	0 2	wceq	$$wffℂ=𝑹\times 𝑹$$