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Mirrors > Home > ILE Home > Th. List > 3ne0 | GIF version |
Description: The number 3 is nonzero. (Contributed by FL, 17-Oct-2010.) (Proof shortened by Andrew Salmon, 7-May-2011.) |
Ref | Expression |
---|---|
3ne0 | ⊢ 3 ≠ 0 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3re 8890 | . 2 ⊢ 3 ∈ ℝ | |
2 | 3pos 8910 | . 2 ⊢ 0 < 3 | |
3 | 1, 2 | gt0ne0ii 8345 | 1 ⊢ 3 ≠ 0 |
Colors of variables: wff set class |
Syntax hints: ≠ wne 2327 0cc0 7715 3c3 8868 |
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 604 ax-in2 605 ax-io 699 ax-5 1427 ax-7 1428 ax-gen 1429 ax-ie1 1473 ax-ie2 1474 ax-8 1484 ax-10 1485 ax-11 1486 ax-i12 1487 ax-bndl 1489 ax-4 1490 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-13 2130 ax-14 2131 ax-ext 2139 ax-sep 4082 ax-pow 4134 ax-pr 4168 ax-un 4392 ax-setind 4494 ax-cnex 7806 ax-resscn 7807 ax-1cn 7808 ax-1re 7809 ax-icn 7810 ax-addcl 7811 ax-addrcl 7812 ax-mulcl 7813 ax-addcom 7815 ax-addass 7817 ax-i2m1 7820 ax-0lt1 7821 ax-0id 7823 ax-rnegex 7824 ax-pre-ltirr 7827 ax-pre-lttrn 7829 ax-pre-ltadd 7831 |
This theorem depends on definitions: df-bi 116 df-3an 965 df-tru 1338 df-fal 1341 df-nf 1441 df-sb 1743 df-eu 2009 df-mo 2010 df-clab 2144 df-cleq 2150 df-clel 2153 df-nfc 2288 df-ne 2328 df-nel 2423 df-ral 2440 df-rex 2441 df-rab 2444 df-v 2714 df-dif 3104 df-un 3106 df-in 3108 df-ss 3115 df-pw 3545 df-sn 3566 df-pr 3567 df-op 3569 df-uni 3773 df-br 3966 df-opab 4026 df-xp 4589 df-iota 5132 df-fv 5175 df-ov 5821 df-pnf 7897 df-mnf 7898 df-ltxr 7900 df-2 8875 df-3 8876 |
This theorem is referenced by: (None) |
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