| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > 8nn0 | Unicode version | ||
| Description: 8 is a nonnegative integer. (Contributed by Mario Carneiro, 19-Apr-2015.) |
| Ref | Expression |
|---|---|
| 8nn0 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 8nn 9477 |
. 2
| |
| 2 | 1 | nnnn0i 9576 |
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-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 ax-sep 4249 ax-cnex 8271 ax-resscn 8272 ax-1re 8274 ax-addrcl 8277 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-int 3971 df-br 4131 df-iota 5337 df-fv 5385 df-ov 6088 df-inn 9308 df-2 9366 df-3 9367 df-4 9368 df-5 9369 df-6 9370 df-7 9371 df-8 9372 df-n0 9569 |
| This theorem is used by: 8p3e11 9867 8p4e12 9868 8p5e13 9869 8p6e14 9870 8p7e15 9871 8p8e16 9872 9p9e18 9880 6t4e24 9892 7t5e35 9898 8t3e24 9902 8t4e32 9903 8t5e40 9904 8t6e48 9905 8t7e56 9906 8t8e64 9907 9t3e27 9909 9t9e81 9915 2exp7 13237 2exp11 13239 2exp16 13240 19prm 13255 prmlem2 13257 37prm 13258 43prm 13259 83prm 13260 139prm 13261 163prm 13262 317prm 13263 631prm 13264 1259lem1 13265 1259lem2 13266 1259lem3 13267 1259lem4 13268 1259lem5 13269 1259prm 13270 slotsdnscsi 13630 log2ublem3 16184 log2ublog2 16185 bpos1 16271 2lgslem3a 16378 2lgslem3b 16379 2lgslem3c 16380 2lgslem3d 16381 basendxltedgfndx 16417 ex-exp 16907 |
| Copyright terms: Public domain | W3C validator |