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| Mirrors > Home > ILE Home > Th. List > 7nn0 | GIF version | ||
| Description: 7 is a nonnegative integer. (Contributed by Mario Carneiro, 19-Apr-2015.) |
| Ref | Expression |
|---|---|
| 7nn0 | ⊢ 7 ∈ ℕ0 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 7nn 9475 | . 2 ⊢ 7 ∈ ℕ | |
| 2 | 1 | nnnn0i 9575 | 1 ⊢ 7 ∈ ℕ0 |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ∈ wcel 2209 7c7 9362 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-5 9368 df-6 9369 df-7 9370 df-n0 9568 |
| This theorem is used by: 7p4e11 9861 7p5e12 9862 7p6e13 9863 7p7e14 9864 8p8e16 9871 9p8e17 9878 9p9e18 9879 7t3e21 9895 7t4e28 9896 7t5e35 9897 7t6e42 9898 7t7e49 9899 8t8e64 9906 9t3e27 9908 9t4e36 9909 9t8e72 9913 9t9e81 9914 7prm 13245 17prm 13251 23prm 13253 prmlem2 13254 37prm 13255 83prm 13257 139prm 13258 163prm 13259 317prm 13260 631prm 13261 1259lem1 13262 1259lem2 13263 1259lem3 13264 1259lem4 13265 1259lem5 13266 1259prm 13267 log2ublem1 16140 log2ublem3 16142 log2ublog2 16143 bclbnd 16205 bpos1 16208 |
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