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| Mirrors > Home > ILE Home > Th. List > 8nn0 | GIF version | ||
| Description: 8 is a nonnegative integer. (Contributed by Mario Carneiro, 19-Apr-2015.) |
| Ref | Expression |
|---|---|
| 8nn0 | ⊢ 8 ∈ ℕ0 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 8nn 9483 | . 2 ⊢ 8 ∈ ℕ | |
| 2 | 1 | nnnn0i 9582 | 1 ⊢ 8 ∈ ℕ0 |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ∈ wcel 2209 8c8 9370 ℕ0cn0 9574 |
| 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 4251 ax-cnex 8276 ax-resscn 8277 ax-1re 8279 ax-addrcl 8282 |
| 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 4132 df-iota 5340 df-fv 5388 df-ov 6091 df-inn 9314 df-2 9372 df-3 9373 df-4 9374 df-5 9375 df-6 9376 df-7 9377 df-8 9378 df-n0 9575 |
| This theorem is used by: 8p3e11 9872 8p4e12 9873 8p5e13 9874 8p6e14 9875 8p7e15 9876 8p8e16 9877 9p9e18 9885 6t4e24 9897 7t5e35 9903 8t3e24 9907 8t4e32 9908 8t5e40 9909 8t6e48 9910 8t7e56 9911 8t8e64 9912 9t3e27 9914 9t9e81 9920 2exp7 13242 2exp11 13244 2exp16 13245 19prm 13260 prmlem2 13262 37prm 13263 43prm 13264 83prm 13265 139prm 13266 163prm 13267 317prm 13268 631prm 13269 1259lem1 13270 1259lem2 13271 1259lem3 13272 1259lem4 13273 1259lem5 13274 1259prm 13275 slotsdnscsi 13635 log2ublem3 16240 log2ublog2 16241 bpos1 16327 2lgslem3a 16434 2lgslem3b 16435 2lgslem3c 16436 2lgslem3d 16437 basendxltedgfndx 16473 ex-exp 16963 |
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