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| Mirrors > Home > ILE Home > Th. List > 9nn0 | Unicode version | ||
| Description: 9 is a nonnegative integer. (Contributed by Mario Carneiro, 19-Apr-2015.) |
| Ref | Expression |
|---|---|
| 9nn0 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 9nn 9406 |
. 2
| |
| 2 | 1 | nnnn0i 9504 |
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-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2214 ax-sep 4228 ax-cnex 8218 ax-resscn 8219 ax-1re 8221 ax-addrcl 8224 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ral 2525 df-rex 2526 df-v 2815 df-un 3215 df-in 3217 df-ss 3224 df-sn 3695 df-pr 3696 df-op 3698 df-uni 3915 df-int 3950 df-br 4110 df-iota 5312 df-fv 5360 df-ov 6053 df-inn 9238 df-2 9296 df-3 9297 df-4 9298 df-5 9299 df-6 9300 df-7 9301 df-8 9302 df-9 9303 df-n0 9497 |
| This theorem is referenced by: deccl 9723 le9lt10 9735 decsucc 9749 9p2e11 9795 9p3e12 9796 9p4e13 9797 9p5e14 9798 9p6e15 9799 9p7e16 9800 9p8e17 9801 9p9e18 9802 9t3e27 9831 9t4e36 9832 9t5e45 9833 9t6e54 9834 9t7e63 9835 9t8e72 9836 9t9e81 9837 sq10e99m1 11075 3dvds2dec 12552 2exp8 13133 dsndxntsetndx 13437 unifndxntsetndx 13444 setsmsdsg 15345 |
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