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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 9371 |
. 2
| |
| 2 | 1 | nnnn0i 9469 |
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 2213 ax-sep 4212 ax-cnex 8183 ax-resscn 8184 ax-1re 8186 ax-addrcl 8189 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ral 2516 df-rex 2517 df-v 2805 df-un 3205 df-in 3207 df-ss 3214 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-int 3934 df-br 4094 df-iota 5293 df-fv 5341 df-ov 6031 df-inn 9203 df-2 9261 df-3 9262 df-4 9263 df-5 9264 df-6 9265 df-7 9266 df-8 9267 df-9 9268 df-n0 9462 |
| This theorem is referenced by: deccl 9686 le9lt10 9698 decsucc 9712 9p2e11 9758 9p3e12 9759 9p4e13 9760 9p5e14 9761 9p6e15 9762 9p7e16 9763 9p8e17 9764 9p9e18 9765 9t3e27 9794 9t4e36 9795 9t5e45 9796 9t6e54 9797 9t7e63 9798 9t8e72 9799 9t9e81 9800 sq10e99m1 11038 3dvds2dec 12507 2exp8 13088 dsndxntsetndx 13387 unifndxntsetndx 13394 setsmsdsg 15291 |
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