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| Mirrors > Home > MPE Home > Th. List > sotric | Structured version Visualization version GIF version | ||
| Description: A strict order relation satisfies strict trichotomy. (Contributed by NM, 19-Feb-1996.) |
| Ref | Expression |
|---|---|
| sotric | ⊢ ((𝑅 Or 𝐴 ∧ (𝐵 ∈ 𝐴 ∧ 𝐶 ∈ 𝐴)) → (𝐵𝑅𝐶 ↔ ¬ (𝐵 = 𝐶 ∨ 𝐶𝑅𝐵))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sonr 5566 | . . . . . 6 ⊢ ((𝑅 Or 𝐴 ∧ 𝐵 ∈ 𝐴) → ¬ 𝐵𝑅𝐵) | |
| 2 | breq2 5104 | . . . . . . 7 ⊢ (𝐵 = 𝐶 → (𝐵𝑅𝐵 ↔ 𝐵𝑅𝐶)) | |
| 3 | 2 | notbid 318 | . . . . . 6 ⊢ (𝐵 = 𝐶 → (¬ 𝐵𝑅𝐵 ↔ ¬ 𝐵𝑅𝐶)) |
| 4 | 1, 3 | syl5ibcom 245 | . . . . 5 ⊢ ((𝑅 Or 𝐴 ∧ 𝐵 ∈ 𝐴) → (𝐵 = 𝐶 → ¬ 𝐵𝑅𝐶)) |
| 5 | 4 | adantrr 718 | . . . 4 ⊢ ((𝑅 Or 𝐴 ∧ (𝐵 ∈ 𝐴 ∧ 𝐶 ∈ 𝐴)) → (𝐵 = 𝐶 → ¬ 𝐵𝑅𝐶)) |
| 6 | so2nr 5570 | . . . . . 6 ⊢ ((𝑅 Or 𝐴 ∧ (𝐵 ∈ 𝐴 ∧ 𝐶 ∈ 𝐴)) → ¬ (𝐵𝑅𝐶 ∧ 𝐶𝑅𝐵)) | |
| 7 | imnan 399 | . . . . . 6 ⊢ ((𝐵𝑅𝐶 → ¬ 𝐶𝑅𝐵) ↔ ¬ (𝐵𝑅𝐶 ∧ 𝐶𝑅𝐵)) | |
| 8 | 6, 7 | sylibr 234 | . . . . 5 ⊢ ((𝑅 Or 𝐴 ∧ (𝐵 ∈ 𝐴 ∧ 𝐶 ∈ 𝐴)) → (𝐵𝑅𝐶 → ¬ 𝐶𝑅𝐵)) |
| 9 | 8 | con2d 134 | . . . 4 ⊢ ((𝑅 Or 𝐴 ∧ (𝐵 ∈ 𝐴 ∧ 𝐶 ∈ 𝐴)) → (𝐶𝑅𝐵 → ¬ 𝐵𝑅𝐶)) |
| 10 | 5, 9 | jaod 860 | . . 3 ⊢ ((𝑅 Or 𝐴 ∧ (𝐵 ∈ 𝐴 ∧ 𝐶 ∈ 𝐴)) → ((𝐵 = 𝐶 ∨ 𝐶𝑅𝐵) → ¬ 𝐵𝑅𝐶)) |
| 11 | solin 5569 | . . . . 5 ⊢ ((𝑅 Or 𝐴 ∧ (𝐵 ∈ 𝐴 ∧ 𝐶 ∈ 𝐴)) → (𝐵𝑅𝐶 ∨ 𝐵 = 𝐶 ∨ 𝐶𝑅𝐵)) | |
| 12 | 3orass 1090 | . . . . 5 ⊢ ((𝐵𝑅𝐶 ∨ 𝐵 = 𝐶 ∨ 𝐶𝑅𝐵) ↔ (𝐵𝑅𝐶 ∨ (𝐵 = 𝐶 ∨ 𝐶𝑅𝐵))) | |
| 13 | 11, 12 | sylib 218 | . . . 4 ⊢ ((𝑅 Or 𝐴 ∧ (𝐵 ∈ 𝐴 ∧ 𝐶 ∈ 𝐴)) → (𝐵𝑅𝐶 ∨ (𝐵 = 𝐶 ∨ 𝐶𝑅𝐵))) |
| 14 | 13 | ord 865 | . . 3 ⊢ ((𝑅 Or 𝐴 ∧ (𝐵 ∈ 𝐴 ∧ 𝐶 ∈ 𝐴)) → (¬ 𝐵𝑅𝐶 → (𝐵 = 𝐶 ∨ 𝐶𝑅𝐵))) |
| 15 | 10, 14 | impbid 212 | . 2 ⊢ ((𝑅 Or 𝐴 ∧ (𝐵 ∈ 𝐴 ∧ 𝐶 ∈ 𝐴)) → ((𝐵 = 𝐶 ∨ 𝐶𝑅𝐵) ↔ ¬ 𝐵𝑅𝐶)) |
| 16 | 15 | con2bid 354 | 1 ⊢ ((𝑅 Or 𝐴 ∧ (𝐵 ∈ 𝐴 ∧ 𝐶 ∈ 𝐴)) → (𝐵𝑅𝐶 ↔ ¬ (𝐵 = 𝐶 ∨ 𝐶𝑅𝐵))) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 206 ∧ wa 395 ∨ wo 848 ∨ w3o 1086 = wceq 1542 ∈ wcel 2114 class class class wbr 5100 Or wor 5541 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-ral 3053 df-rab 3402 df-v 3444 df-dif 3906 df-un 3908 df-ss 3920 df-nul 4288 df-if 4482 df-sn 4583 df-pr 4585 df-op 4589 df-br 5101 df-po 5542 df-so 5543 |
| This theorem is referenced by: soasym 5575 sotr2 5576 sotr3 5583 sotri2 6096 sotri3 6097 somin1 6100 somincom 6101 soisores 7285 soisoi 7286 fimaxg 9201 suplub2 9378 supgtoreq 9388 fiming 9417 infsupprpr 9423 ordtypelem7 9443 fpwwe2 10568 indpi 10832 nqereu 10854 ltsonq 10894 prub 10919 ltapr 10970 suplem2pr 10978 ltsosr 11019 axpre-lttri 11090 noetasuplem4 27721 noetainflem4 27725 lesloe 27739 prproropf1olem4 47895 |
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