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Mirrors > Home > MPE Home > Th. List > ax-resscn | Structured version Visualization version GIF version |
Description: The real numbers are a subset of the complex numbers. Axiom 1 of 22 for real and complex numbers, justified by Theorem axresscn 10905. (Contributed by NM, 1-Mar-1995.) |
Ref | Expression |
---|---|
ax-resscn | ⊢ ℝ ⊆ ℂ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cr 10871 | . 2 class ℝ | |
2 | cc 10870 | . 2 class ℂ | |
3 | 1, 2 | wss 3892 | 1 wff ℝ ⊆ ℂ |
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