| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > lttri2 | Structured version Visualization version GIF version | ||
| Description: Consequence of trichotomy. (Contributed by NM, 9-Oct-1999.) |
| Ref | Expression |
|---|---|
| lttri2 | ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴 ≠ 𝐵 ↔ (𝐴 < 𝐵 ∨ 𝐵 < 𝐴))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ltso 11224 | . . . 4 ⊢ < Or ℝ | |
| 2 | sotrieq 5564 | . . . 4 ⊢ (( < Or ℝ ∧ (𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ)) → (𝐴 = 𝐵 ↔ ¬ (𝐴 < 𝐵 ∨ 𝐵 < 𝐴))) | |
| 3 | 1, 2 | mpan 696 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴 = 𝐵 ↔ ¬ (𝐴 < 𝐵 ∨ 𝐵 < 𝐴))) |
| 4 | 3 | bicomd 224 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (¬ (𝐴 < 𝐵 ∨ 𝐵 < 𝐴) ↔ 𝐴 = 𝐵)) |
| 5 | 4 | necon1abid 2973 | 1 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴 ≠ 𝐵 ↔ (𝐴 < 𝐵 ∨ 𝐵 < 𝐴))) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 207 ∧ wa 396 ∨ wo 853 = wceq 1547 ∈ wcel 2119 ≠ wne 2935 class class class wbr 5079 Or wor 5532 ℝcr 11035 < clt 11177 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2712 ax-sep 5225 ax-nul 5235 ax-pow 5301 ax-pr 5369 ax-un 7685 ax-resscn 11093 ax-pre-lttri 11110 ax-pre-lttrn 11111 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3or 1093 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2719 df-cleq 2732 df-clel 2815 df-nfc 2889 df-ne 2936 df-nel 3040 df-ral 3055 df-rex 3065 df-rab 3393 df-v 3434 df-sbc 3731 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4269 df-if 4462 df-pw 4538 df-sn 4563 df-pr 4565 df-op 4569 df-uni 4846 df-br 5080 df-opab 5142 df-mpt 5161 df-id 5520 df-po 5533 df-so 5534 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-er 8640 df-en 8891 df-dom 8892 df-sdom 8893 df-pnf 11179 df-mnf 11180 df-ltxr 11182 |
| This theorem is referenced by: ne0gt0 11249 lttri2i 11258 lttri2d 11283 cshwshashlem3 17066 gsummoncoe1 22301 mp2pm2mplem4 22799 chfacfscmulgsum 22850 chfacfpmmulgsum 22854 dvne0 26003 relogbf 26780 atanlogsub 26905 nn0prpw 36558 itg2addnclem2 38046 12gcd5e1 42495 hashscontpow 42614 sticksstones1 42638 sticksstones2 42639 nerabdioph 43261 rpnnen3 43484 fmul01lt1lem1 46036 |
| Copyright terms: Public domain | W3C validator |