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| Mirrors > Home > ILE Home > Th. List > 9cn | Unicode version | ||
| Description: The number 9 is complex. (Contributed by David A. Wheeler, 8-Dec-2018.) |
| Ref | Expression |
|---|---|
| 9cn |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 9re 9391 |
. 2
| |
| 2 | 1 | recni 8338 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-11 1559 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 ax-resscn 8271 ax-1re 8273 ax-addrcl 8276 |
| This proof depends on definitions: df-bi 117 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-in 3226 df-ss 3233 df-2 9363 df-3 9364 df-4 9365 df-5 9366 df-6 9367 df-7 9368 df-8 9369 df-9 9370 |
| This theorem is used by: 10m1e9 9872 9t2e18 9898 9t8e72 9904 9t9e81 9905 9t11e99 9906 0.999... 12288 cos2bnd 12527 3dvds 12631 3dvdsdec 12632 3dvds2dec 12633 2exp8 13214 log2tlbndlog2 16082 log2ublem3 16085 log2ublog2 16086 |
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