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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 5585 | . . . . . 6 ⊢ ((𝑅 Or 𝐴 ∧ 𝐵 ∈ 𝐴) → ¬ 𝐵𝑅𝐵) | |
| 2 | breq2 5123 | . . . . . . 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 717 | . . . 4 ⊢ ((𝑅 Or 𝐴 ∧ (𝐵 ∈ 𝐴 ∧ 𝐶 ∈ 𝐴)) → (𝐵 = 𝐶 → ¬ 𝐵𝑅𝐶)) |
| 6 | so2nr 5589 | . . . . . 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 859 | . . 3 ⊢ ((𝑅 Or 𝐴 ∧ (𝐵 ∈ 𝐴 ∧ 𝐶 ∈ 𝐴)) → ((𝐵 = 𝐶 ∨ 𝐶𝑅𝐵) → ¬ 𝐵𝑅𝐶)) |
| 11 | solin 5588 | . . . . 5 ⊢ ((𝑅 Or 𝐴 ∧ (𝐵 ∈ 𝐴 ∧ 𝐶 ∈ 𝐴)) → (𝐵𝑅𝐶 ∨ 𝐵 = 𝐶 ∨ 𝐶𝑅𝐵)) | |
| 12 | 3orass 1089 | . . . . 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 864 | . . 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 847 ∨ w3o 1085 = wceq 1540 ∈ wcel 2108 class class class wbr 5119 Or wor 5560 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-ext 2707 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-sb 2065 df-clab 2714 df-cleq 2727 df-clel 2809 df-ral 3052 df-rab 3416 df-v 3461 df-dif 3929 df-un 3931 df-ss 3943 df-nul 4309 df-if 4501 df-sn 4602 df-pr 4604 df-op 4608 df-br 5120 df-po 5561 df-so 5562 |
| This theorem is referenced by: soasym 5594 sotr2 5595 sotr3 5602 sotri2 6118 sotri3 6119 somin1 6122 somincom 6123 soisores 7320 soisoi 7321 fimaxg 9295 suplub2 9473 supgtoreq 9483 fiming 9512 infsupprpr 9518 ordtypelem7 9538 fpwwe2 10657 indpi 10921 nqereu 10943 ltsonq 10983 prub 11008 ltapr 11059 suplem2pr 11067 ltsosr 11108 axpre-lttri 11179 noetasuplem4 27700 noetainflem4 27704 sleloe 27718 prproropf1olem4 47520 |
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