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Mirrors > Home > ILE Home > Th. List > ax-1cn | Unicode version |
Description: 1 is a complex number. Axiom for real and complex numbers, justified by theorem ax1cn 6937. (Contributed by NM, 1-Mar-1995.) |
Ref | Expression |
---|---|
ax-1cn |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | c1 6890 | . 2 | |
2 | cc 6887 | . 2 | |
3 | 1, 2 | wcel 1393 | 1 |
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