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Theorem truniALTVD 39861
Description: The union of a class of transitive sets is transitive. The following User's Proof is a Virtual Deduction proof completed automatically by the tools program completeusersproof.cmd, which invokes Mel L. O'Cat's mmj2 and Norm Megill's Metamath Proof Assistant. truniALT 39514 is truniALTVD 39861 without virtual deductions and was automatically derived from truniALTVD 39861.
1:: (   𝑥𝐴Tr 𝑥   ▶   𝑥𝐴 Tr 𝑥   )
2:: (   𝑥𝐴Tr 𝑥   ,   (𝑧𝑦 𝑦 𝐴)   ▶   (𝑧𝑦𝑦 𝐴)   )
3:2: (   𝑥𝐴Tr 𝑥   ,   (𝑧𝑦 𝑦 𝐴)   ▶   𝑧𝑦   )
4:2: (   𝑥𝐴Tr 𝑥   ,   (𝑧𝑦 𝑦 𝐴)   ▶   𝑦 𝐴   )
5:4: (   𝑥𝐴Tr 𝑥   ,   (𝑧𝑦 𝑦 𝐴)   ▶   𝑞(𝑦𝑞𝑞𝐴)   )
6:: (   𝑥𝐴Tr 𝑥   ,   (𝑧𝑦 𝑦 𝐴), (𝑦𝑞𝑞𝐴)   ▶   (𝑦𝑞𝑞𝐴)   )
7:6: (   𝑥𝐴Tr 𝑥   ,   (𝑧𝑦 𝑦 𝐴), (𝑦𝑞𝑞𝐴)   ▶   𝑦𝑞   )
8:6: (   𝑥𝐴Tr 𝑥   ,   (𝑧𝑦 𝑦 𝐴), (𝑦𝑞𝑞𝐴)   ▶   𝑞𝐴   )
9:1,8: (   𝑥𝐴Tr 𝑥   ,   (𝑧𝑦 𝑦 𝐴), (𝑦𝑞𝑞𝐴)   ▶   [𝑞 / 𝑥]Tr 𝑥   )
10:8,9: (   𝑥𝐴Tr 𝑥   ,   (𝑧𝑦 𝑦 𝐴), (𝑦𝑞𝑞𝐴)   ▶   Tr 𝑞   )
11:3,7,10: (   𝑥𝐴Tr 𝑥   ,   (𝑧𝑦 𝑦 𝐴), (𝑦𝑞𝑞𝐴)   ▶   𝑧𝑞   )
12:11,8: (   𝑥𝐴Tr 𝑥   ,   (𝑧𝑦 𝑦 𝐴), (𝑦𝑞𝑞𝐴)   ▶   𝑧 𝐴   )
13:12: (   𝑥𝐴Tr 𝑥   ,   (𝑧𝑦 𝑦 𝐴)   ▶   ((𝑦𝑞𝑞𝐴) → 𝑧 𝐴)   )
14:13: (   𝑥𝐴Tr 𝑥   ,   (𝑧𝑦 𝑦 𝐴)   ▶   𝑞((𝑦𝑞𝑞𝐴) → 𝑧 𝐴)   )
15:14: (   𝑥𝐴Tr 𝑥   ,   (𝑧𝑦 𝑦 𝐴)   ▶   (∃𝑞(𝑦𝑞𝑞𝐴) → 𝑧 𝐴)   )
16:5,15: (   𝑥𝐴Tr 𝑥   ,   (𝑧𝑦 𝑦 𝐴)   ▶   𝑧 𝐴   )
17:16: (   𝑥𝐴Tr 𝑥   ▶   ((𝑧𝑦 𝑦 𝐴) → 𝑧 𝐴)   )
18:17: (   𝑥𝐴Tr 𝑥    ▶   𝑧𝑦((𝑧𝑦𝑦 𝐴) → 𝑧 𝐴)   )
19:18: (   𝑥𝐴Tr 𝑥   ▶   Tr 𝐴   )
qed:19: (∀𝑥𝐴Tr 𝑥 → Tr 𝐴)
(Contributed by Alan Sare, 18-Mar-2012.) (Proof modification is discouraged.) (New usage is discouraged.)
Assertion
Ref Expression
truniALTVD (∀𝑥𝐴 Tr 𝑥 → Tr 𝐴)
Distinct variable group:   𝑥,𝐴

Proof of Theorem truniALTVD
Dummy variables 𝑞 𝑦 𝑧 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 idn2 39595 . . . . . . . 8 (   𝑥𝐴 Tr 𝑥   ,   (𝑧𝑦𝑦 𝐴)   ▶   (𝑧𝑦𝑦 𝐴)   )
2 simpr 478 . . . . . . . 8 ((𝑧𝑦𝑦 𝐴) → 𝑦 𝐴)
31, 2e2 39613 . . . . . . 7 (   𝑥𝐴 Tr 𝑥   ,   (𝑧𝑦𝑦 𝐴)   ▶   𝑦 𝐴   )
4 eluni 4629 . . . . . . . 8 (𝑦 𝐴 ↔ ∃𝑞(𝑦𝑞𝑞𝐴))
54biimpi 208 . . . . . . 7 (𝑦 𝐴 → ∃𝑞(𝑦𝑞𝑞𝐴))
63, 5e2 39613 . . . . . 6 (   𝑥𝐴 Tr 𝑥   ,   (𝑧𝑦𝑦 𝐴)   ▶   𝑞(𝑦𝑞𝑞𝐴)   )
7 simpl 475 . . . . . . . . . . . 12 ((𝑧𝑦𝑦 𝐴) → 𝑧𝑦)
81, 7e2 39613 . . . . . . . . . . 11 (   𝑥𝐴 Tr 𝑥   ,   (𝑧𝑦𝑦 𝐴)   ▶   𝑧𝑦   )
9 idn3 39597 . . . . . . . . . . . 12 (   𝑥𝐴 Tr 𝑥   ,   (𝑧𝑦𝑦 𝐴)   ,   (𝑦𝑞𝑞𝐴)   ▶   (𝑦𝑞𝑞𝐴)   )
10 simpl 475 . . . . . . . . . . . 12 ((𝑦𝑞𝑞𝐴) → 𝑦𝑞)
119, 10e3 39720 . . . . . . . . . . 11 (   𝑥𝐴 Tr 𝑥   ,   (𝑧𝑦𝑦 𝐴)   ,   (𝑦𝑞𝑞𝐴)   ▶   𝑦𝑞   )
12 simpr 478 . . . . . . . . . . . . 13 ((𝑦𝑞𝑞𝐴) → 𝑞𝐴)
139, 12e3 39720 . . . . . . . . . . . 12 (   𝑥𝐴 Tr 𝑥   ,   (𝑧𝑦𝑦 𝐴)   ,   (𝑦𝑞𝑞𝐴)   ▶   𝑞𝐴   )
14 idn1 39547 . . . . . . . . . . . . 13 (   𝑥𝐴 Tr 𝑥   ▶   𝑥𝐴 Tr 𝑥   )
15 rspsbc 3711 . . . . . . . . . . . . . 14 (𝑞𝐴 → (∀𝑥𝐴 Tr 𝑥[𝑞 / 𝑥]Tr 𝑥))
1615com12 32 . . . . . . . . . . . . 13 (∀𝑥𝐴 Tr 𝑥 → (𝑞𝐴[𝑞 / 𝑥]Tr 𝑥))
1714, 13, 16e13 39731 . . . . . . . . . . . 12 (   𝑥𝐴 Tr 𝑥   ,   (𝑧𝑦𝑦 𝐴)   ,   (𝑦𝑞𝑞𝐴)   ▶   [𝑞 / 𝑥]Tr 𝑥   )
18 trsbc 39513 . . . . . . . . . . . . 13 (𝑞𝐴 → ([𝑞 / 𝑥]Tr 𝑥 ↔ Tr 𝑞))
1918biimpd 221 . . . . . . . . . . . 12 (𝑞𝐴 → ([𝑞 / 𝑥]Tr 𝑥 → Tr 𝑞))
2013, 17, 19e33 39717 . . . . . . . . . . 11 (   𝑥𝐴 Tr 𝑥   ,   (𝑧𝑦𝑦 𝐴)   ,   (𝑦𝑞𝑞𝐴)   ▶   Tr 𝑞   )
21 trel 4950 . . . . . . . . . . . 12 (Tr 𝑞 → ((𝑧𝑦𝑦𝑞) → 𝑧𝑞))
2221expdcom 404 . . . . . . . . . . 11 (𝑧𝑦 → (𝑦𝑞 → (Tr 𝑞𝑧𝑞)))
238, 11, 20, 22e233 39748 . . . . . . . . . 10 (   𝑥𝐴 Tr 𝑥   ,   (𝑧𝑦𝑦 𝐴)   ,   (𝑦𝑞𝑞𝐴)   ▶   𝑧𝑞   )
24 elunii 4631 . . . . . . . . . . 11 ((𝑧𝑞𝑞𝐴) → 𝑧 𝐴)
2524ex 402 . . . . . . . . . 10 (𝑧𝑞 → (𝑞𝐴𝑧 𝐴))
2623, 13, 25e33 39717 . . . . . . . . 9 (   𝑥𝐴 Tr 𝑥   ,   (𝑧𝑦𝑦 𝐴)   ,   (𝑦𝑞𝑞𝐴)   ▶   𝑧 𝐴   )
2726in3 39591 . . . . . . . 8 (   𝑥𝐴 Tr 𝑥   ,   (𝑧𝑦𝑦 𝐴)   ▶   ((𝑦𝑞𝑞𝐴) → 𝑧 𝐴)   )
2827gen21 39601 . . . . . . 7 (   𝑥𝐴 Tr 𝑥   ,   (𝑧𝑦𝑦 𝐴)   ▶   𝑞((𝑦𝑞𝑞𝐴) → 𝑧 𝐴)   )
29 19.23v 2038 . . . . . . . 8 (∀𝑞((𝑦𝑞𝑞𝐴) → 𝑧 𝐴) ↔ (∃𝑞(𝑦𝑞𝑞𝐴) → 𝑧 𝐴))
3029biimpi 208 . . . . . . 7 (∀𝑞((𝑦𝑞𝑞𝐴) → 𝑧 𝐴) → (∃𝑞(𝑦𝑞𝑞𝐴) → 𝑧 𝐴))
3128, 30e2 39613 . . . . . 6 (   𝑥𝐴 Tr 𝑥   ,   (𝑧𝑦𝑦 𝐴)   ▶   (∃𝑞(𝑦𝑞𝑞𝐴) → 𝑧 𝐴)   )
32 pm2.27 42 . . . . . 6 (∃𝑞(𝑦𝑞𝑞𝐴) → ((∃𝑞(𝑦𝑞𝑞𝐴) → 𝑧 𝐴) → 𝑧 𝐴))
336, 31, 32e22 39653 . . . . 5 (   𝑥𝐴 Tr 𝑥   ,   (𝑧𝑦𝑦 𝐴)   ▶   𝑧 𝐴   )
3433in2 39587 . . . 4 (   𝑥𝐴 Tr 𝑥   ▶   ((𝑧𝑦𝑦 𝐴) → 𝑧 𝐴)   )
3534gen12 39600 . . 3 (   𝑥𝐴 Tr 𝑥   ▶   𝑧𝑦((𝑧𝑦𝑦 𝐴) → 𝑧 𝐴)   )
36 dftr2 4945 . . . 4 (Tr 𝐴 ↔ ∀𝑧𝑦((𝑧𝑦𝑦 𝐴) → 𝑧 𝐴))
3736biimpri 220 . . 3 (∀𝑧𝑦((𝑧𝑦𝑦 𝐴) → 𝑧 𝐴) → Tr 𝐴)
3835, 37e1a 39609 . 2 (   𝑥𝐴 Tr 𝑥   ▶   Tr 𝐴   )
3938in1 39544 1 (∀𝑥𝐴 Tr 𝑥 → Tr 𝐴)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 385  wal 1651  wex 1875  wcel 2157  wral 3087  [wsbc 3631   cuni 4626  Tr wtr 4943
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1891  ax-4 1905  ax-5 2006  ax-6 2072  ax-7 2107  ax-9 2166  ax-10 2185  ax-11 2200  ax-12 2213  ax-13 2375  ax-ext 2775
This theorem depends on definitions:  df-bi 199  df-an 386  df-or 875  df-3an 1110  df-tru 1657  df-ex 1876  df-nf 1880  df-sb 2065  df-clab 2784  df-cleq 2790  df-clel 2793  df-nfc 2928  df-ral 3092  df-v 3385  df-sbc 3632  df-in 3774  df-ss 3781  df-uni 4627  df-tr 4944  df-vd1 39543  df-vd2 39551  df-vd3 39563
This theorem is referenced by: (None)
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