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Mirrors > Home > ILE Home > Th. List > df-0 | GIF version |
Description: Define the complex number 0. (Contributed by NM, 22-Feb-1996.) |
Ref | Expression |
---|---|
df-0 | ⊢ 0 = 〈0R, 0R〉 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cc0 7644 | . 2 class 0 | |
2 | c0r 7130 | . . 3 class 0R | |
3 | 2, 2 | cop 3535 | . 2 class 〈0R, 0R〉 |
4 | 1, 3 | wceq 1332 | 1 wff 0 = 〈0R, 0R〉 |
Colors of variables: wff set class |
This definition is referenced by: pitoregt0 7681 axi2m1 7707 ax0lt1 7708 ax0id 7710 axrnegex 7711 axprecex 7712 axpre-mulgt0 7719 axcaucvglemres 7731 |
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