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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 7744 | . 2 | |
2 | c0r 7230 | . . 3 | |
3 | 2, 2 | cop 3573 | . 2 |
4 | 1, 3 | wceq 1342 | 1 |
Colors of variables: wff set class |
This definition is referenced by: pitoregt0 7781 axi2m1 7807 ax0lt1 7808 ax0id 7810 axrnegex 7811 axprecex 7812 axpre-mulgt0 7819 axcaucvglemres 7831 |
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