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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 9394 |
. 2
| |
| 2 | 1 | recni 8339 |
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 8272 ax-1re 8274 ax-addrcl 8277 |
| 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 9366 df-3 9367 df-4 9368 df-5 9369 df-6 9370 df-7 9371 df-8 9372 df-9 9373 |
| This theorem is used by: 10m1e9 9882 9t2e18 9908 9t8e72 9914 9t9e81 9915 9t11e99 9916 0.999... 12307 cos2bnd 12546 3dvds 12650 3dvdsdec 12651 3dvds2dec 12652 2exp8 13238 139prm 13261 163prm 13262 317prm 13263 631prm 13264 1259lem1 13265 1259lem2 13266 1259lem3 13267 1259lem4 13268 1259lem5 13269 log2tlbndlog2 16181 log2ublem3 16184 log2ublog2 16185 bposlem8 16279 |
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