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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 9309 | . 2 ⊢ 7 ∈ ℕ | |
| 2 | 1 | nnnn0i 9409 | 1 ⊢ 7 ∈ ℕ0 |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2202 7c7 9198 ℕ0cn0 9401 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 ax-sep 4207 ax-cnex 8122 ax-resscn 8123 ax-1re 8125 ax-addrcl 8128 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-v 2804 df-un 3204 df-in 3206 df-ss 3213 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-int 3929 df-br 4089 df-iota 5286 df-fv 5334 df-ov 6020 df-inn 9143 df-2 9201 df-3 9202 df-4 9203 df-5 9204 df-6 9205 df-7 9206 df-n0 9402 |
| This theorem is referenced by: 7p4e11 9685 7p5e12 9686 7p6e13 9687 7p7e14 9688 8p8e16 9695 9p8e17 9702 9p9e18 9703 7t3e21 9719 7t4e28 9720 7t5e35 9721 7t6e42 9722 7t7e49 9723 8t8e64 9730 9t3e27 9732 9t4e36 9733 9t8e72 9737 9t9e81 9738 |
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