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Theorem sotritric 4296
Description: A trichotomy relationship, given a trichotomous order. (Contributed by Jim Kingdon, 28-Sep-2019.)
Hypotheses
Ref Expression
sotritric.or 𝑅 Or 𝐴
sotritric.tri ((𝐵𝐴𝐶𝐴) → (𝐵𝑅𝐶𝐵 = 𝐶𝐶𝑅𝐵))
Assertion
Ref Expression
sotritric ((𝐵𝐴𝐶𝐴) → (𝐵𝑅𝐶 ↔ ¬ (𝐵 = 𝐶𝐶𝑅𝐵)))

Proof of Theorem sotritric
StepHypRef Expression
1 sotritric.or . . 3 𝑅 Or 𝐴
2 sotricim 4295 . . 3 ((𝑅 Or 𝐴 ∧ (𝐵𝐴𝐶𝐴)) → (𝐵𝑅𝐶 → ¬ (𝐵 = 𝐶𝐶𝑅𝐵)))
31, 2mpan 421 . 2 ((𝐵𝐴𝐶𝐴) → (𝐵𝑅𝐶 → ¬ (𝐵 = 𝐶𝐶𝑅𝐵)))
4 sotritric.tri . . 3 ((𝐵𝐴𝐶𝐴) → (𝐵𝑅𝐶𝐵 = 𝐶𝐶𝑅𝐵))
5 3orass 970 . . . 4 ((𝐵𝑅𝐶𝐵 = 𝐶𝐶𝑅𝐵) ↔ (𝐵𝑅𝐶 ∨ (𝐵 = 𝐶𝐶𝑅𝐵)))
6 ax-1 6 . . . . 5 (𝐵𝑅𝐶 → (¬ (𝐵 = 𝐶𝐶𝑅𝐵) → 𝐵𝑅𝐶))
7 pm2.24 611 . . . . 5 ((𝐵 = 𝐶𝐶𝑅𝐵) → (¬ (𝐵 = 𝐶𝐶𝑅𝐵) → 𝐵𝑅𝐶))
86, 7jaoi 706 . . . 4 ((𝐵𝑅𝐶 ∨ (𝐵 = 𝐶𝐶𝑅𝐵)) → (¬ (𝐵 = 𝐶𝐶𝑅𝐵) → 𝐵𝑅𝐶))
95, 8sylbi 120 . . 3 ((𝐵𝑅𝐶𝐵 = 𝐶𝐶𝑅𝐵) → (¬ (𝐵 = 𝐶𝐶𝑅𝐵) → 𝐵𝑅𝐶))
104, 9syl 14 . 2 ((𝐵𝐴𝐶𝐴) → (¬ (𝐵 = 𝐶𝐶𝑅𝐵) → 𝐵𝑅𝐶))
113, 10impbid 128 1 ((𝐵𝐴𝐶𝐴) → (𝐵𝑅𝐶 ↔ ¬ (𝐵 = 𝐶𝐶𝑅𝐵)))
Colors of variables: wff set class
Syntax hints:  ¬ wn 3  wi 4  wa 103  wb 104  wo 698  w3o 966   = wceq 1342  wcel 2135   class class class wbr 3976   Or wor 4267
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 1434  ax-7 1435  ax-gen 1436  ax-ie1 1480  ax-ie2 1481  ax-8 1491  ax-10 1492  ax-11 1493  ax-i12 1494  ax-bndl 1496  ax-4 1497  ax-17 1513  ax-i9 1517  ax-ial 1521  ax-i5r 1522  ax-ext 2146
This theorem depends on definitions:  df-bi 116  df-3or 968  df-3an 969  df-tru 1345  df-nf 1448  df-sb 1750  df-clab 2151  df-cleq 2157  df-clel 2160  df-nfc 2295  df-ral 2447  df-v 2723  df-un 3115  df-sn 3576  df-pr 3577  df-op 3579  df-br 3977  df-po 4268  df-iso 4269
This theorem is referenced by:  nqtric  7331
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