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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 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cc0 6889 |
. 2
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2 | c0r 6396 |
. . 3
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3 | 2, 2 | cop 3378 |
. 2
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4 | 1, 3 | wceq 1243 |
1
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Colors of variables: wff set class |
This definition is referenced by: pitoregt0 6925 axi2m1 6949 ax0lt1 6950 ax0id 6952 axrnegex 6953 axprecex 6954 axpre-mulgt0 6961 axcaucvglemres 6973 ax-0lt1 6990 |
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