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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 9185 | . 2 ⊢ 7 ∈ ℕ | |
| 2 | 1 | nnnn0i 9285 | 1 ⊢ 7 ∈ ℕ0 |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2175 7c7 9074 ℕ0cn0 9277 |
| 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 710 ax-5 1469 ax-7 1470 ax-gen 1471 ax-ie1 1515 ax-ie2 1516 ax-8 1526 ax-10 1527 ax-11 1528 ax-i12 1529 ax-bndl 1531 ax-4 1532 ax-17 1548 ax-i9 1552 ax-ial 1556 ax-i5r 1557 ax-ext 2186 ax-sep 4161 ax-cnex 7998 ax-resscn 7999 ax-1re 8001 ax-addrcl 8004 |
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1375 df-nf 1483 df-sb 1785 df-clab 2191 df-cleq 2197 df-clel 2200 df-nfc 2336 df-ral 2488 df-rex 2489 df-v 2773 df-un 3169 df-in 3171 df-ss 3178 df-sn 3638 df-pr 3639 df-op 3641 df-uni 3850 df-int 3885 df-br 4044 df-iota 5229 df-fv 5276 df-ov 5937 df-inn 9019 df-2 9077 df-3 9078 df-4 9079 df-5 9080 df-6 9081 df-7 9082 df-n0 9278 |
| This theorem is referenced by: 7p4e11 9561 7p5e12 9562 7p6e13 9563 7p7e14 9564 8p8e16 9571 9p8e17 9578 9p9e18 9579 7t3e21 9595 7t4e28 9596 7t5e35 9597 7t6e42 9598 7t7e49 9599 8t8e64 9606 9t3e27 9608 9t4e36 9609 9t8e72 9613 9t9e81 9614 |
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