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| Description: Define the set of complex numbers. |
| Ref | Expression |
|---|---|
| df-c |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cc 4026 |
. 2
| |
| 2 | cnr 3787 |
. . 3
| |
| 3 | 2, 2 | cxp 2408 |
. 2
|
| 4 | 1, 3 | wceq 1091 |
1
|
| Colors of variables: wff set class |
| This definition is referenced by: opelcn 4042 0ncn 4045 addcnsr 4047 mulcnsr 4048 dfcnqs 4056 axaddex 4059 axmulex 4060 axcnex 4061 axresscn 4062 axaddcl 4066 axmulcl 4068 ax0id 4076 ax1id 4077 axnegex 4078 axrecex 4079 axcnre 4087 |