![]() |
Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
Mirrors > Home > MPE Home > Th. List > df-1 | Unicode version |
Description: Define the complex number 1. (Contributed by NM, 22-Feb-1996.) (New usage is discouraged.) |
Ref | Expression |
---|---|
df-1 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | c1 9514 | . 2 | |
2 | c1r 9266 | . . 3 | |
3 | c0r 9265 | . . 3 | |
4 | 2, 3 | cop 4035 | . 2 |
5 | 1, 4 | wceq 1395 | 1 |
Colors of variables: wff setvar class |
This definition is referenced by: ax1cn 9547 axi2m1 9557 ax1ne0 9558 ax1rid 9559 axrrecex 9561 |
Copyright terms: Public domain | W3C validator |