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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 9125 |
. 2
| |
| 2 | 1 | recni 8086 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1470 ax-7 1471 ax-gen 1472 ax-ie1 1516 ax-ie2 1517 ax-8 1527 ax-11 1529 ax-4 1533 ax-17 1549 ax-i9 1553 ax-ial 1557 ax-i5r 1558 ax-ext 2187 ax-resscn 8019 ax-1re 8021 ax-addrcl 8024 |
| This theorem depends on definitions: df-bi 117 df-nf 1484 df-sb 1786 df-clab 2192 df-cleq 2198 df-clel 2201 df-in 3172 df-ss 3179 df-2 9097 df-3 9098 df-4 9099 df-5 9100 df-6 9101 df-7 9102 df-8 9103 df-9 9104 |
| This theorem is referenced by: 10m1e9 9601 9t2e18 9627 9t8e72 9633 9t9e81 9634 9t11e99 9635 0.999... 11865 cos2bnd 12104 3dvds 12208 3dvdsdec 12209 3dvds2dec 12210 2exp8 12791 |
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