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Mirrors > Home > ILE Home > Th. List > df-0 | Unicode version |
Description: Define the complex number 0. (Contributed by NM, 22-Feb-1996.) |
Ref | Expression |
---|---|
df-0 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cc0 7613 | . 2 | |
2 | c0r 7099 | . . 3 | |
3 | 2, 2 | cop 3525 | . 2 |
4 | 1, 3 | wceq 1331 | 1 |
Colors of variables: wff set class |
This definition is referenced by: pitoregt0 7650 axi2m1 7676 ax0lt1 7677 ax0id 7679 axrnegex 7680 axprecex 7681 axpre-mulgt0 7688 axcaucvglemres 7700 |
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