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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 9002 | . 2 ⊢ (𝑁 ∈ ℕ0 → 0 ≤ 𝑁) | |
3 | 1, 2 | ax-mp 5 | 1 ⊢ 0 ≤ 𝑁 |
Colors of variables: wff set class |
Syntax hints: ∈ wcel 1480 class class class wbr 3929 0cc0 7620 ≤ cle 7801 ℕ0cn0 8977 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 603 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-13 1491 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-sep 4046 ax-pow 4098 ax-pr 4131 ax-un 4355 ax-setind 4452 ax-cnex 7711 ax-resscn 7712 ax-1cn 7713 ax-1re 7714 ax-icn 7715 ax-addcl 7716 ax-addrcl 7717 ax-mulcl 7718 ax-i2m1 7725 ax-0lt1 7726 ax-0id 7728 ax-rnegex 7729 ax-pre-ltirr 7732 ax-pre-ltwlin 7733 ax-pre-lttrn 7734 ax-pre-ltadd 7736 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-fal 1337 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ne 2309 df-nel 2404 df-ral 2421 df-rex 2422 df-rab 2425 df-v 2688 df-dif 3073 df-un 3075 df-in 3077 df-ss 3084 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-uni 3737 df-int 3772 df-br 3930 df-opab 3990 df-xp 4545 df-cnv 4547 df-iota 5088 df-fv 5131 df-ov 5777 df-pnf 7802 df-mnf 7803 df-xr 7804 df-ltxr 7805 df-le 7806 df-inn 8721 df-n0 8978 |
This theorem is referenced by: (None) |
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