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| Mirrors > Home > ILE Home > Th. List > 4nn0 | GIF version | ||
| Description: 4 is a nonnegative integer. (Contributed by Mario Carneiro, 18-Feb-2014.) |
| Ref | Expression |
|---|---|
| 4nn0 | ⊢ 4 ∈ ℕ0 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 4nn 9472 | . 2 ⊢ 4 ∈ ℕ | |
| 2 | 1 | nnnn0i 9575 | 1 ⊢ 4 ∈ ℕ0 |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ∈ wcel 2209 4c4 9359 ℕ0cn0 9567 |
| 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 8270 ax-resscn 8271 ax-1re 8273 ax-addrcl 8276 |
| 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 9307 df-2 9365 df-3 9366 df-4 9367 df-n0 9568 |
| This theorem is used by: 6p5e11 9858 7p5e12 9862 8p5e13 9868 8p7e15 9870 9p5e14 9875 9p6e15 9876 4t3e12 9883 4t4e16 9884 5t5e25 9888 6t4e24 9891 6t5e30 9892 7t3e21 9895 7t5e35 9897 7t7e49 9899 8t3e24 9901 8t4e32 9902 8t5e40 9903 8t6e48 9904 8t7e56 9905 8t8e64 9906 9t5e45 9910 9t6e54 9911 9t7e63 9912 decbin3 9927 fzo0to42pr 10648 4bc3eq4 11226 resin4p 12501 recos4p 12502 ef01bndlem 12539 sin01bnd 12540 cos01bnd 12541 prm23lt5 13062 2exp7 13234 2exp8 13235 2exp11 13236 2exp16 13237 2expltfac 13239 13prm 13250 19prm 13252 prmlem2 13254 37prm 13255 43prm 13256 83prm 13257 139prm 13258 163prm 13259 317prm 13260 631prm 13261 1259lem1 13262 1259lem2 13263 1259lem3 13264 1259lem4 13265 1259lem5 13266 1259prm 13267 slotsdifdsndx 13628 slotsdifunifndx 13635 prdsvalstrd 13669 binom4 16138 log2ublem3 16142 log2ublog2 16143 ppiublem2 16193 bclbnd 16205 bpos1 16208 2lgslem3a 16310 2lgslem3b 16311 2lgslem3c 16312 2lgslem3d 16313 ex-exp 16839 ex-fac 16840 ex-bc 16841 |
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