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Theorem funtpgOLD 5901
Description: Obsolete proof of funtpg 5900 as of 14-Jul-2021. (Contributed by Alexander van der Vekens, 5-Dec-2017.) (New usage is discouraged.) (Proof modification is discouraged.)
Assertion
Ref Expression
funtpgOLD (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → Fun {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩, ⟨𝑍, 𝐶⟩})

Proof of Theorem funtpgOLD
StepHypRef Expression
1 3simpa 1056 . . . 4 ((𝑋𝑈𝑌𝑉𝑍𝑊) → (𝑋𝑈𝑌𝑉))
2 3simpa 1056 . . . 4 ((𝐴𝐹𝐵𝐺𝐶𝐻) → (𝐴𝐹𝐵𝐺))
3 simp1 1059 . . . 4 ((𝑋𝑌𝑋𝑍𝑌𝑍) → 𝑋𝑌)
4 funprg 5898 . . . 4 (((𝑋𝑈𝑌𝑉) ∧ (𝐴𝐹𝐵𝐺) ∧ 𝑋𝑌) → Fun {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩})
51, 2, 3, 4syl3an 1365 . . 3 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → Fun {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩})
6 simp13 1091 . . . 4 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → 𝑍𝑊)
7 simp23 1094 . . . 4 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → 𝐶𝐻)
8 funsng 5895 . . . 4 ((𝑍𝑊𝐶𝐻) → Fun {⟨𝑍, 𝐶⟩})
96, 7, 8syl2anc 692 . . 3 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → Fun {⟨𝑍, 𝐶⟩})
1023ad2ant2 1081 . . . . . 6 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → (𝐴𝐹𝐵𝐺))
11 dmpropg 5567 . . . . . 6 ((𝐴𝐹𝐵𝐺) → dom {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩} = {𝑋, 𝑌})
1210, 11syl 17 . . . . 5 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → dom {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩} = {𝑋, 𝑌})
13 dmsnopg 5565 . . . . . 6 (𝐶𝐻 → dom {⟨𝑍, 𝐶⟩} = {𝑍})
147, 13syl 17 . . . . 5 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → dom {⟨𝑍, 𝐶⟩} = {𝑍})
1512, 14ineq12d 3793 . . . 4 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → (dom {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩} ∩ dom {⟨𝑍, 𝐶⟩}) = ({𝑋, 𝑌} ∩ {𝑍}))
16 elpri 4168 . . . . . . . 8 (𝑍 ∈ {𝑋, 𝑌} → (𝑍 = 𝑋𝑍 = 𝑌))
17 nne 2794 . . . . . . . . . . . . 13 𝑋𝑍𝑋 = 𝑍)
1817biimpri 218 . . . . . . . . . . . 12 (𝑋 = 𝑍 → ¬ 𝑋𝑍)
1918eqcoms 2629 . . . . . . . . . . 11 (𝑍 = 𝑋 → ¬ 𝑋𝑍)
20193mix2d 1235 . . . . . . . . . 10 (𝑍 = 𝑋 → (¬ 𝑋𝑌 ∨ ¬ 𝑋𝑍 ∨ ¬ 𝑌𝑍))
21 nne 2794 . . . . . . . . . . . . 13 𝑌𝑍𝑌 = 𝑍)
2221biimpri 218 . . . . . . . . . . . 12 (𝑌 = 𝑍 → ¬ 𝑌𝑍)
2322eqcoms 2629 . . . . . . . . . . 11 (𝑍 = 𝑌 → ¬ 𝑌𝑍)
24233mix3d 1236 . . . . . . . . . 10 (𝑍 = 𝑌 → (¬ 𝑋𝑌 ∨ ¬ 𝑋𝑍 ∨ ¬ 𝑌𝑍))
2520, 24jaoi 394 . . . . . . . . 9 ((𝑍 = 𝑋𝑍 = 𝑌) → (¬ 𝑋𝑌 ∨ ¬ 𝑋𝑍 ∨ ¬ 𝑌𝑍))
26 3ianor 1053 . . . . . . . . 9 (¬ (𝑋𝑌𝑋𝑍𝑌𝑍) ↔ (¬ 𝑋𝑌 ∨ ¬ 𝑋𝑍 ∨ ¬ 𝑌𝑍))
2725, 26sylibr 224 . . . . . . . 8 ((𝑍 = 𝑋𝑍 = 𝑌) → ¬ (𝑋𝑌𝑋𝑍𝑌𝑍))
2816, 27syl 17 . . . . . . 7 (𝑍 ∈ {𝑋, 𝑌} → ¬ (𝑋𝑌𝑋𝑍𝑌𝑍))
2928con2i 134 . . . . . 6 ((𝑋𝑌𝑋𝑍𝑌𝑍) → ¬ 𝑍 ∈ {𝑋, 𝑌})
30 disjsn 4216 . . . . . 6 (({𝑋, 𝑌} ∩ {𝑍}) = ∅ ↔ ¬ 𝑍 ∈ {𝑋, 𝑌})
3129, 30sylibr 224 . . . . 5 ((𝑋𝑌𝑋𝑍𝑌𝑍) → ({𝑋, 𝑌} ∩ {𝑍}) = ∅)
32313ad2ant3 1082 . . . 4 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → ({𝑋, 𝑌} ∩ {𝑍}) = ∅)
3315, 32eqtrd 2655 . . 3 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → (dom {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩} ∩ dom {⟨𝑍, 𝐶⟩}) = ∅)
34 funun 5890 . . 3 (((Fun {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩} ∧ Fun {⟨𝑍, 𝐶⟩}) ∧ (dom {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩} ∩ dom {⟨𝑍, 𝐶⟩}) = ∅) → Fun ({⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩} ∪ {⟨𝑍, 𝐶⟩}))
355, 9, 33, 34syl21anc 1322 . 2 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → Fun ({⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩} ∪ {⟨𝑍, 𝐶⟩}))
36 df-tp 4153 . . 3 {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩, ⟨𝑍, 𝐶⟩} = ({⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩} ∪ {⟨𝑍, 𝐶⟩})
3736funeqi 5868 . 2 (Fun {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩, ⟨𝑍, 𝐶⟩} ↔ Fun ({⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩} ∪ {⟨𝑍, 𝐶⟩}))
3835, 37sylibr 224 1 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → Fun {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩, ⟨𝑍, 𝐶⟩})
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wo 383  wa 384  w3o 1035  w3a 1036   = wceq 1480  wcel 1987  wne 2790  cun 3553  cin 3554  c0 3891  {csn 4148  {cpr 4150  {ctp 4152  cop 4154  dom cdm 5074  Fun wfun 5841
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1719  ax-4 1734  ax-5 1836  ax-6 1885  ax-7 1932  ax-9 1996  ax-10 2016  ax-11 2031  ax-12 2044  ax-13 2245  ax-ext 2601  ax-sep 4741  ax-nul 4749  ax-pr 4867
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1037  df-3an 1038  df-tru 1483  df-ex 1702  df-nf 1707  df-sb 1878  df-eu 2473  df-mo 2474  df-clab 2608  df-cleq 2614  df-clel 2617  df-nfc 2750  df-ne 2791  df-ral 2912  df-rex 2913  df-rab 2916  df-v 3188  df-dif 3558  df-un 3560  df-in 3562  df-ss 3569  df-nul 3892  df-if 4059  df-sn 4149  df-pr 4151  df-tp 4153  df-op 4155  df-br 4614  df-opab 4674  df-id 4989  df-xp 5080  df-rel 5081  df-cnv 5082  df-co 5083  df-dm 5084  df-fun 5849
This theorem is referenced by: (None)
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