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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 8775 | . 2 | |
2 | 1 | recni 7746 | 1 |
Colors of variables: wff set class |
Syntax hints: wcel 1465 cc 7586 c9 8746 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-5 1408 ax-7 1409 ax-gen 1410 ax-ie1 1454 ax-ie2 1455 ax-8 1467 ax-11 1469 ax-4 1472 ax-17 1491 ax-i9 1495 ax-ial 1499 ax-i5r 1500 ax-ext 2099 ax-resscn 7680 ax-1re 7682 ax-addrcl 7685 |
This theorem depends on definitions: df-bi 116 df-nf 1422 df-sb 1721 df-clab 2104 df-cleq 2110 df-clel 2113 df-in 3047 df-ss 3054 df-2 8747 df-3 8748 df-4 8749 df-5 8750 df-6 8751 df-7 8752 df-8 8753 df-9 8754 |
This theorem is referenced by: 10m1e9 9245 9t2e18 9271 9t8e72 9277 9t9e81 9278 9t11e99 9279 0.999... 11258 cos2bnd 11394 3dvdsdec 11489 3dvds2dec 11490 |
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