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Theorem elpotr 31991
Description: A class of transitive sets is partially ordered by E. (Contributed by Scott Fenton, 15-Oct-2010.)
Assertion
Ref Expression
elpotr (∀𝑧𝐴 Tr 𝑧 → E Po 𝐴)
Distinct variable group:   𝑧,𝐴

Proof of Theorem elpotr
Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 alral 3066 . . . . . 6 (∀𝑦((𝑥𝑦𝑦𝑧) → 𝑥𝑧) → ∀𝑦𝐴 ((𝑥𝑦𝑦𝑧) → 𝑥𝑧))
21alimi 1888 . . . . 5 (∀𝑥𝑦((𝑥𝑦𝑦𝑧) → 𝑥𝑧) → ∀𝑥𝑦𝐴 ((𝑥𝑦𝑦𝑧) → 𝑥𝑧))
3 alral 3066 . . . . 5 (∀𝑥𝑦𝐴 ((𝑥𝑦𝑦𝑧) → 𝑥𝑧) → ∀𝑥𝐴𝑦𝐴 ((𝑥𝑦𝑦𝑧) → 𝑥𝑧))
42, 3syl 17 . . . 4 (∀𝑥𝑦((𝑥𝑦𝑦𝑧) → 𝑥𝑧) → ∀𝑥𝐴𝑦𝐴 ((𝑥𝑦𝑦𝑧) → 𝑥𝑧))
54ralimi 3090 . . 3 (∀𝑧𝐴𝑥𝑦((𝑥𝑦𝑦𝑧) → 𝑥𝑧) → ∀𝑧𝐴𝑥𝐴𝑦𝐴 ((𝑥𝑦𝑦𝑧) → 𝑥𝑧))
6 ralcom 3236 . . . 4 (∀𝑧𝐴𝑥𝐴𝑦𝐴 ((𝑥𝑦𝑦𝑧) → 𝑥𝑧) ↔ ∀𝑥𝐴𝑧𝐴𝑦𝐴 ((𝑥𝑦𝑦𝑧) → 𝑥𝑧))
7 ralcom 3236 . . . . 5 (∀𝑧𝐴𝑦𝐴 ((𝑥𝑦𝑦𝑧) → 𝑥𝑧) ↔ ∀𝑦𝐴𝑧𝐴 ((𝑥𝑦𝑦𝑧) → 𝑥𝑧))
87ralbii 3118 . . . 4 (∀𝑥𝐴𝑧𝐴𝑦𝐴 ((𝑥𝑦𝑦𝑧) → 𝑥𝑧) ↔ ∀𝑥𝐴𝑦𝐴𝑧𝐴 ((𝑥𝑦𝑦𝑧) → 𝑥𝑧))
96, 8bitri 264 . . 3 (∀𝑧𝐴𝑥𝐴𝑦𝐴 ((𝑥𝑦𝑦𝑧) → 𝑥𝑧) ↔ ∀𝑥𝐴𝑦𝐴𝑧𝐴 ((𝑥𝑦𝑦𝑧) → 𝑥𝑧))
105, 9sylib 208 . 2 (∀𝑧𝐴𝑥𝑦((𝑥𝑦𝑦𝑧) → 𝑥𝑧) → ∀𝑥𝐴𝑦𝐴𝑧𝐴 ((𝑥𝑦𝑦𝑧) → 𝑥𝑧))
11 dftr2 4906 . . 3 (Tr 𝑧 ↔ ∀𝑥𝑦((𝑥𝑦𝑦𝑧) → 𝑥𝑧))
1211ralbii 3118 . 2 (∀𝑧𝐴 Tr 𝑧 ↔ ∀𝑧𝐴𝑥𝑦((𝑥𝑦𝑦𝑧) → 𝑥𝑧))
13 df-po 5187 . . 3 ( E Po 𝐴 ↔ ∀𝑥𝐴𝑦𝐴𝑧𝐴𝑥 E 𝑥 ∧ ((𝑥 E 𝑦𝑦 E 𝑧) → 𝑥 E 𝑧)))
14 epel 5182 . . . . . . . 8 (𝑥 E 𝑦𝑥𝑦)
15 epel 5182 . . . . . . . 8 (𝑦 E 𝑧𝑦𝑧)
1614, 15anbi12i 735 . . . . . . 7 ((𝑥 E 𝑦𝑦 E 𝑧) ↔ (𝑥𝑦𝑦𝑧))
17 epel 5182 . . . . . . 7 (𝑥 E 𝑧𝑥𝑧)
1816, 17imbi12i 339 . . . . . 6 (((𝑥 E 𝑦𝑦 E 𝑧) → 𝑥 E 𝑧) ↔ ((𝑥𝑦𝑦𝑧) → 𝑥𝑧))
19 elirrv 8666 . . . . . . . 8 ¬ 𝑥𝑥
20 epel 5182 . . . . . . . 8 (𝑥 E 𝑥𝑥𝑥)
2119, 20mtbir 312 . . . . . . 7 ¬ 𝑥 E 𝑥
2221biantrur 528 . . . . . 6 (((𝑥 E 𝑦𝑦 E 𝑧) → 𝑥 E 𝑧) ↔ (¬ 𝑥 E 𝑥 ∧ ((𝑥 E 𝑦𝑦 E 𝑧) → 𝑥 E 𝑧)))
2318, 22bitr3i 266 . . . . 5 (((𝑥𝑦𝑦𝑧) → 𝑥𝑧) ↔ (¬ 𝑥 E 𝑥 ∧ ((𝑥 E 𝑦𝑦 E 𝑧) → 𝑥 E 𝑧)))
2423ralbii 3118 . . . 4 (∀𝑧𝐴 ((𝑥𝑦𝑦𝑧) → 𝑥𝑧) ↔ ∀𝑧𝐴𝑥 E 𝑥 ∧ ((𝑥 E 𝑦𝑦 E 𝑧) → 𝑥 E 𝑧)))
25242ralbii 3119 . . 3 (∀𝑥𝐴𝑦𝐴𝑧𝐴 ((𝑥𝑦𝑦𝑧) → 𝑥𝑧) ↔ ∀𝑥𝐴𝑦𝐴𝑧𝐴𝑥 E 𝑥 ∧ ((𝑥 E 𝑦𝑦 E 𝑧) → 𝑥 E 𝑧)))
2613, 25bitr4i 267 . 2 ( E Po 𝐴 ↔ ∀𝑥𝐴𝑦𝐴𝑧𝐴 ((𝑥𝑦𝑦𝑧) → 𝑥𝑧))
2710, 12, 263imtr4i 281 1 (∀𝑧𝐴 Tr 𝑧 → E Po 𝐴)
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wa 383  wal 1630  wral 3050   class class class wbr 4804  Tr wtr 4904   E cep 5178   Po wpo 5185
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1871  ax-4 1886  ax-5 1988  ax-6 2054  ax-7 2090  ax-9 2148  ax-10 2168  ax-11 2183  ax-12 2196  ax-13 2391  ax-ext 2740  ax-sep 4933  ax-nul 4941  ax-pr 5055  ax-reg 8662
This theorem depends on definitions:  df-bi 197  df-or 384  df-an 385  df-3an 1074  df-tru 1635  df-ex 1854  df-nf 1859  df-sb 2047  df-eu 2611  df-mo 2612  df-clab 2747  df-cleq 2753  df-clel 2756  df-nfc 2891  df-ne 2933  df-ral 3055  df-rex 3056  df-rab 3059  df-v 3342  df-dif 3718  df-un 3720  df-in 3722  df-ss 3729  df-nul 4059  df-if 4231  df-sn 4322  df-pr 4324  df-op 4328  df-uni 4589  df-br 4805  df-opab 4865  df-tr 4905  df-eprel 5179  df-po 5187
This theorem is referenced by: (None)
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