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Mirrors > Home > ILE Home > Th. List > zlelttric | GIF version |
Description: Trichotomy law. (Contributed by Jim Kingdon, 17-Apr-2020.) |
Ref | Expression |
---|---|
zlelttric | ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) → (𝐴 ≤ 𝐵 ∨ 𝐵 < 𝐴)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | zre 9171 | . . 3 ⊢ (𝐴 ∈ ℤ → 𝐴 ∈ ℝ) | |
2 | zre 9171 | . . 3 ⊢ (𝐵 ∈ ℤ → 𝐵 ∈ ℝ) | |
3 | 1, 2 | anim12i 336 | . 2 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) → (𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ)) |
4 | ztri3or 9210 | . 2 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) → (𝐴 < 𝐵 ∨ 𝐴 = 𝐵 ∨ 𝐵 < 𝐴)) | |
5 | ltle 7964 | . . . 4 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴 < 𝐵 → 𝐴 ≤ 𝐵)) | |
6 | orc 702 | . . . 4 ⊢ (𝐴 ≤ 𝐵 → (𝐴 ≤ 𝐵 ∨ 𝐵 < 𝐴)) | |
7 | 5, 6 | syl6 33 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴 < 𝐵 → (𝐴 ≤ 𝐵 ∨ 𝐵 < 𝐴))) |
8 | eqle 7968 | . . . . . 6 ⊢ ((𝐴 ∈ ℝ ∧ 𝐴 = 𝐵) → 𝐴 ≤ 𝐵) | |
9 | 8 | ex 114 | . . . . 5 ⊢ (𝐴 ∈ ℝ → (𝐴 = 𝐵 → 𝐴 ≤ 𝐵)) |
10 | 9 | adantr 274 | . . . 4 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴 = 𝐵 → 𝐴 ≤ 𝐵)) |
11 | 10, 6 | syl6 33 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴 = 𝐵 → (𝐴 ≤ 𝐵 ∨ 𝐵 < 𝐴))) |
12 | olc 701 | . . . 4 ⊢ (𝐵 < 𝐴 → (𝐴 ≤ 𝐵 ∨ 𝐵 < 𝐴)) | |
13 | 12 | a1i 9 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐵 < 𝐴 → (𝐴 ≤ 𝐵 ∨ 𝐵 < 𝐴))) |
14 | 7, 11, 13 | 3jaod 1286 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → ((𝐴 < 𝐵 ∨ 𝐴 = 𝐵 ∨ 𝐵 < 𝐴) → (𝐴 ≤ 𝐵 ∨ 𝐵 < 𝐴))) |
15 | 3, 4, 14 | sylc 62 | 1 ⊢ ((𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ) → (𝐴 ≤ 𝐵 ∨ 𝐵 < 𝐴)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 103 ∨ wo 698 ∨ w3o 962 = wceq 1335 ∈ wcel 2128 class class class wbr 3965 ℝcr 7731 < clt 7912 ≤ cle 7913 ℤcz 9167 |
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 4135 ax-pr 4169 ax-un 4393 ax-setind 4496 ax-cnex 7823 ax-resscn 7824 ax-1cn 7825 ax-1re 7826 ax-icn 7827 ax-addcl 7828 ax-addrcl 7829 ax-mulcl 7830 ax-addcom 7832 ax-addass 7834 ax-distr 7836 ax-i2m1 7837 ax-0lt1 7838 ax-0id 7840 ax-rnegex 7841 ax-cnre 7843 ax-pre-ltirr 7844 ax-pre-ltwlin 7845 ax-pre-lttrn 7846 ax-pre-ltadd 7848 |
This theorem depends on definitions: df-bi 116 df-3or 964 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-reu 2442 df-rab 2444 df-v 2714 df-sbc 2938 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-int 3808 df-br 3966 df-opab 4026 df-id 4253 df-xp 4592 df-rel 4593 df-cnv 4594 df-co 4595 df-dm 4596 df-iota 5135 df-fun 5172 df-fv 5178 df-riota 5780 df-ov 5827 df-oprab 5828 df-mpo 5829 df-pnf 7914 df-mnf 7915 df-xr 7916 df-ltxr 7917 df-le 7918 df-sub 8048 df-neg 8049 df-inn 8834 df-n0 9091 df-z 9168 |
This theorem is referenced by: btwnapz 9294 eluzdc 9521 fzsplit2 9952 uzsplit 9994 fzospliti 10075 fzouzsplit 10078 faclbnd 10615 resqrexlemoverl 10921 fisumrev2 11343 dvdslelemd 11735 dvdsle 11736 sqrt2irrap 12055 uzdcinzz 13383 |
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