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Theorem funtpgOLD 5857
 Description: Obsolete proof of funtpg 5856 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 1051 . . . 4 ((𝑋𝑈𝑌𝑉𝑍𝑊) → (𝑋𝑈𝑌𝑉))
2 3simpa 1051 . . . 4 ((𝐴𝐹𝐵𝐺𝐶𝐻) → (𝐴𝐹𝐵𝐺))
3 simp1 1054 . . . 4 ((𝑋𝑌𝑋𝑍𝑌𝑍) → 𝑋𝑌)
4 funprg 5854 . . . 4 (((𝑋𝑈𝑌𝑉) ∧ (𝐴𝐹𝐵𝐺) ∧ 𝑋𝑌) → Fun {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩})
51, 2, 3, 4syl3an 1360 . . 3 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → Fun {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩})
6 simp13 1086 . . . 4 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → 𝑍𝑊)
7 simp23 1089 . . . 4 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → 𝐶𝐻)
8 funsng 5851 . . . 4 ((𝑍𝑊𝐶𝐻) → Fun {⟨𝑍, 𝐶⟩})
96, 7, 8syl2anc 691 . . 3 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → Fun {⟨𝑍, 𝐶⟩})
1023ad2ant2 1076 . . . . . 6 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → (𝐴𝐹𝐵𝐺))
11 dmpropg 5526 . . . . . 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 5524 . . . . . 6 (𝐶𝐻 → dom {⟨𝑍, 𝐶⟩} = {𝑍})
147, 13syl 17 . . . . 5 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → dom {⟨𝑍, 𝐶⟩} = {𝑍})
1512, 14ineq12d 3777 . . . 4 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → (dom {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩} ∩ dom {⟨𝑍, 𝐶⟩}) = ({𝑋, 𝑌} ∩ {𝑍}))
16 elpri 4145 . . . . . . . 8 (𝑍 ∈ {𝑋, 𝑌} → (𝑍 = 𝑋𝑍 = 𝑌))
17 nne 2786 . . . . . . . . . . . . 13 𝑋𝑍𝑋 = 𝑍)
1817biimpri 217 . . . . . . . . . . . 12 (𝑋 = 𝑍 → ¬ 𝑋𝑍)
1918eqcoms 2618 . . . . . . . . . . 11 (𝑍 = 𝑋 → ¬ 𝑋𝑍)
20193mix2d 1230 . . . . . . . . . 10 (𝑍 = 𝑋 → (¬ 𝑋𝑌 ∨ ¬ 𝑋𝑍 ∨ ¬ 𝑌𝑍))
21 nne 2786 . . . . . . . . . . . . 13 𝑌𝑍𝑌 = 𝑍)
2221biimpri 217 . . . . . . . . . . . 12 (𝑌 = 𝑍 → ¬ 𝑌𝑍)
2322eqcoms 2618 . . . . . . . . . . 11 (𝑍 = 𝑌 → ¬ 𝑌𝑍)
24233mix3d 1231 . . . . . . . . . 10 (𝑍 = 𝑌 → (¬ 𝑋𝑌 ∨ ¬ 𝑋𝑍 ∨ ¬ 𝑌𝑍))
2520, 24jaoi 393 . . . . . . . . 9 ((𝑍 = 𝑋𝑍 = 𝑌) → (¬ 𝑋𝑌 ∨ ¬ 𝑋𝑍 ∨ ¬ 𝑌𝑍))
26 3ianor 1048 . . . . . . . . 9 (¬ (𝑋𝑌𝑋𝑍𝑌𝑍) ↔ (¬ 𝑋𝑌 ∨ ¬ 𝑋𝑍 ∨ ¬ 𝑌𝑍))
2725, 26sylibr 223 . . . . . . . 8 ((𝑍 = 𝑋𝑍 = 𝑌) → ¬ (𝑋𝑌𝑋𝑍𝑌𝑍))
2816, 27syl 17 . . . . . . 7 (𝑍 ∈ {𝑋, 𝑌} → ¬ (𝑋𝑌𝑋𝑍𝑌𝑍))
2928con2i 133 . . . . . 6 ((𝑋𝑌𝑋𝑍𝑌𝑍) → ¬ 𝑍 ∈ {𝑋, 𝑌})
30 disjsn 4192 . . . . . 6 (({𝑋, 𝑌} ∩ {𝑍}) = ∅ ↔ ¬ 𝑍 ∈ {𝑋, 𝑌})
3129, 30sylibr 223 . . . . 5 ((𝑋𝑌𝑋𝑍𝑌𝑍) → ({𝑋, 𝑌} ∩ {𝑍}) = ∅)
32313ad2ant3 1077 . . . 4 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → ({𝑋, 𝑌} ∩ {𝑍}) = ∅)
3315, 32eqtrd 2644 . . 3 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → (dom {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩} ∩ dom {⟨𝑍, 𝐶⟩}) = ∅)
34 funun 5846 . . 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 1317 . 2 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → Fun ({⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩} ∪ {⟨𝑍, 𝐶⟩}))
36 df-tp 4130 . . 3 {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩, ⟨𝑍, 𝐶⟩} = ({⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩} ∪ {⟨𝑍, 𝐶⟩})
3736funeqi 5824 . 2 (Fun {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩, ⟨𝑍, 𝐶⟩} ↔ Fun ({⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩} ∪ {⟨𝑍, 𝐶⟩}))
3835, 37sylibr 223 1 (((𝑋𝑈𝑌𝑉𝑍𝑊) ∧ (𝐴𝐹𝐵𝐺𝐶𝐻) ∧ (𝑋𝑌𝑋𝑍𝑌𝑍)) → Fun {⟨𝑋, 𝐴⟩, ⟨𝑌, 𝐵⟩, ⟨𝑍, 𝐶⟩})
 Colors of variables: wff setvar class Syntax hints:  ¬ wn 3   → wi 4   ∨ wo 382   ∧ wa 383   ∨ w3o 1030   ∧ w3a 1031   = wceq 1475   ∈ wcel 1977   ≠ wne 2780   ∪ cun 3538   ∩ cin 3539  ∅c0 3874  {csn 4125  {cpr 4127  {ctp 4129  ⟨cop 4131  dom cdm 5038  Fun wfun 5798 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1713  ax-4 1728  ax-5 1827  ax-6 1875  ax-7 1922  ax-9 1986  ax-10 2006  ax-11 2021  ax-12 2034  ax-13 2234  ax-ext 2590  ax-sep 4709  ax-nul 4717  ax-pr 4833 This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-3or 1032  df-3an 1033  df-tru 1478  df-ex 1696  df-nf 1701  df-sb 1868  df-eu 2462  df-mo 2463  df-clab 2597  df-cleq 2603  df-clel 2606  df-nfc 2740  df-ne 2782  df-ral 2901  df-rex 2902  df-rab 2905  df-v 3175  df-dif 3543  df-un 3545  df-in 3547  df-ss 3554  df-nul 3875  df-if 4037  df-sn 4126  df-pr 4128  df-tp 4130  df-op 4132  df-br 4584  df-opab 4644  df-id 4953  df-xp 5044  df-rel 5045  df-cnv 5046  df-co 5047  df-dm 5048  df-fun 5806 This theorem is referenced by: (None)
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