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Theorem funtpgOLD 5931
Description: Obsolete proof of funtpg 5930 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 5928 . . . 4 (((𝑋𝑈𝑌𝑉) ∧ (𝐴𝐹𝐵𝐺) ∧ 𝑋𝑌) → Fun {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩})
51, 2, 3, 4syl3an 1366 . . 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 5925 . . . 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 5596 . . . . . 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 5594 . . . . . 6 (𝐶𝐻 → dom {⟨𝑍, 𝐶⟩} = {𝑍})
147, 13syl 17 . . . . 5 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → dom {⟨𝑍, 𝐶⟩} = {𝑍})
1512, 14ineq12d 3807 . . . 4 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → (dom {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩} ∩ dom {⟨𝑍, 𝐶⟩}) = ({𝑋, 𝑌} ∩ {𝑍}))
16 elpri 4188 . . . . . . . 8 (𝑍 ∈ {𝑋, 𝑌} → (𝑍 = 𝑋𝑍 = 𝑌))
17 nne 2795 . . . . . . . . . . . . 13 𝑋𝑍𝑋 = 𝑍)
1817biimpri 218 . . . . . . . . . . . 12 (𝑋 = 𝑍 → ¬ 𝑋𝑍)
1918eqcoms 2628 . . . . . . . . . . 11 (𝑍 = 𝑋 → ¬ 𝑋𝑍)
20193mix2d 1235 . . . . . . . . . 10 (𝑍 = 𝑋 → (¬ 𝑋𝑌 ∨ ¬ 𝑋𝑍 ∨ ¬ 𝑌𝑍))
21 nne 2795 . . . . . . . . . . . . 13 𝑌𝑍𝑌 = 𝑍)
2221biimpri 218 . . . . . . . . . . . 12 (𝑌 = 𝑍 → ¬ 𝑌𝑍)
2322eqcoms 2628 . . . . . . . . . . 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 4237 . . . . . 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 2654 . . 3 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → (dom {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩} ∩ dom {⟨𝑍, 𝐶⟩}) = ∅)
34 funun 5920 . . 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 1323 . 2 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → Fun ({⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩} ∪ {⟨𝑍, 𝐶⟩}))
36 df-tp 4173 . . 3 {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩, ⟨𝑍, 𝐶⟩} = ({⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩} ∪ {⟨𝑍, 𝐶⟩})
3736funeqi 5897 . 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 1481  wcel 1988  wne 2791  cun 3565  cin 3566  c0 3907  {csn 4168  {cpr 4170  {ctp 4172  cop 4174  dom cdm 5104  Fun wfun 5870
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1720  ax-4 1735  ax-5 1837  ax-6 1886  ax-7 1933  ax-9 1997  ax-10 2017  ax-11 2032  ax-12 2045  ax-13 2244  ax-ext 2600  ax-sep 4772  ax-nul 4780  ax-pr 4897
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1037  df-3an 1038  df-tru 1484  df-ex 1703  df-nf 1708  df-sb 1879  df-eu 2472  df-mo 2473  df-clab 2607  df-cleq 2613  df-clel 2616  df-nfc 2751  df-ne 2792  df-ral 2914  df-rex 2915  df-rab 2918  df-v 3197  df-dif 3570  df-un 3572  df-in 3574  df-ss 3581  df-nul 3908  df-if 4078  df-sn 4169  df-pr 4171  df-tp 4173  df-op 4175  df-br 4645  df-opab 4704  df-id 5014  df-xp 5110  df-rel 5111  df-cnv 5112  df-co 5113  df-dm 5114  df-fun 5878
This theorem is referenced by: (None)
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