Definition df-c 5220

Description: Define the set of complex numbers. The 25 axioms for complex numbers start at axcnex 5247.

Assertion

Ref	Expression
df-c	|- CC = (R. X. R.)

Detailed syntax breakdown of Definition df-c

Step	Hyp	Ref	Expression
1		cc 5212	. 2 class CC
2		cnr 4973	. . 3 class R.
3	2, 2	cxp 3163	. 2 class (R. X. R.)
4	1, 3	wceq 954	1 wff CC = (R. X. R.)

This definition is referenced by:  opelcn 5228  0ncn 5231  addcnsr 5233  mulcnsr 5234  dfcnqs 5242  axaddopr 5245  axmulopr 5246  axcnex 5247  axresscn 5248  ax0id 5261  ax1id 5262  axcnre 5266

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