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| Mirrors > Home > ILE Home > Th. List > nn0ge0i | GIF version | ||
| Description: Nonnegative integers are nonnegative. (Contributed by Raph Levien, 10-Dec-2002.) |
| Ref | Expression |
|---|---|
| nn0ge0.1 | ⊢ 𝑁 ∈ ℕ0 |
| Ref | Expression |
|---|---|
| nn0ge0i | ⊢ 0 ≤ 𝑁 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nn0ge0.1 | . 2 ⊢ 𝑁 ∈ ℕ0 | |
| 2 | nn0ge0 9355 | . 2 ⊢ (𝑁 ∈ ℕ0 → 0 ≤ 𝑁) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ 0 ≤ 𝑁 |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2178 class class class wbr 4059 0cc0 7960 ≤ cle 8143 ℕ0cn0 9330 |
| 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-in1 615 ax-in2 616 ax-io 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-13 2180 ax-14 2181 ax-ext 2189 ax-sep 4178 ax-pow 4234 ax-pr 4269 ax-un 4498 ax-setind 4603 ax-cnex 8051 ax-resscn 8052 ax-1cn 8053 ax-1re 8054 ax-icn 8055 ax-addcl 8056 ax-addrcl 8057 ax-mulcl 8058 ax-i2m1 8065 ax-0lt1 8066 ax-0id 8068 ax-rnegex 8069 ax-pre-ltirr 8072 ax-pre-ltwlin 8073 ax-pre-lttrn 8074 ax-pre-ltadd 8076 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-fal 1379 df-nf 1485 df-sb 1787 df-eu 2058 df-mo 2059 df-clab 2194 df-cleq 2200 df-clel 2203 df-nfc 2339 df-ne 2379 df-nel 2474 df-ral 2491 df-rex 2492 df-rab 2495 df-v 2778 df-dif 3176 df-un 3178 df-in 3180 df-ss 3187 df-pw 3628 df-sn 3649 df-pr 3650 df-op 3652 df-uni 3865 df-int 3900 df-br 4060 df-opab 4122 df-xp 4699 df-cnv 4701 df-iota 5251 df-fv 5298 df-ov 5970 df-pnf 8144 df-mnf 8145 df-xr 8146 df-ltxr 8147 df-le 8148 df-inn 9072 df-n0 9331 |
| This theorem is referenced by: (None) |
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