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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 9400 |
. 2
| |
| 2 | 1 | recni 8344 |
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 8277 ax-1re 8279 ax-addrcl 8282 |
| 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 9372 df-3 9373 df-4 9374 df-5 9375 df-6 9376 df-7 9377 df-8 9378 df-9 9379 |
| This theorem is used by: 10m1e9 9887 9t2e18 9913 9t8e72 9919 9t9e81 9920 9t11e99 9921 0.999... 12312 cos2bnd 12551 3dvds 12655 3dvdsdec 12656 3dvds2dec 12657 2exp8 13243 139prm 13266 163prm 13267 317prm 13268 631prm 13269 1259lem1 13270 1259lem2 13271 1259lem3 13272 1259lem4 13273 1259lem5 13274 log2tlbndlog2 16237 log2ublem3 16240 log2ublog2 16241 bposlem8 16335 |
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