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Theorem tfindsd 41712
Description: Deduction associated with tfinds 7681. (Contributed by Rohan Ridenour, 8-Aug-2023.)
Hypotheses
Ref Expression
tfindsd.1 (𝑥 = ∅ → (𝜓𝜒))
tfindsd.2 (𝑥 = 𝑦 → (𝜓𝜃))
tfindsd.3 (𝑥 = suc 𝑦 → (𝜓𝜏))
tfindsd.4 (𝑥 = 𝐴 → (𝜓𝜂))
tfindsd.5 (𝜑𝜒)
tfindsd.6 ((𝜑𝑦 ∈ On ∧ 𝜃) → 𝜏)
tfindsd.7 ((𝜑 ∧ Lim 𝑥 ∧ ∀𝑦𝑥 𝜃) → 𝜓)
tfindsd.8 (𝜑𝐴 ∈ On)
Assertion
Ref Expression
tfindsd (𝜑𝜂)
Distinct variable groups:   𝜓,𝑦   𝜃,𝑥   𝜂,𝑥   𝑥,𝐴   𝜑,𝑥,𝑦
Allowed substitution hints:   𝜓(𝑥)   𝜒(𝑥,𝑦)   𝜃(𝑦)   𝜏(𝑥,𝑦)   𝜂(𝑦)   𝐴(𝑦)

Proof of Theorem tfindsd
StepHypRef Expression
1 tfindsd.8 . 2 (𝜑𝐴 ∈ On)
2 tfindsd.1 . . 3 (𝑥 = ∅ → (𝜓𝜒))
3 tfindsd.2 . . 3 (𝑥 = 𝑦 → (𝜓𝜃))
4 tfindsd.3 . . 3 (𝑥 = suc 𝑦 → (𝜓𝜏))
5 tfindsd.4 . . 3 (𝑥 = 𝐴 → (𝜓𝜂))
6 tfindsd.5 . . 3 (𝜑𝜒)
7 tfindsd.6 . . . . 5 ((𝜑𝑦 ∈ On ∧ 𝜃) → 𝜏)
873exp 1117 . . . 4 (𝜑 → (𝑦 ∈ On → (𝜃𝜏)))
98com12 32 . . 3 (𝑦 ∈ On → (𝜑 → (𝜃𝜏)))
10 tfindsd.7 . . . . 5 ((𝜑 ∧ Lim 𝑥 ∧ ∀𝑦𝑥 𝜃) → 𝜓)
11103exp 1117 . . . 4 (𝜑 → (Lim 𝑥 → (∀𝑦𝑥 𝜃𝜓)))
1211com12 32 . . 3 (Lim 𝑥 → (𝜑 → (∀𝑦𝑥 𝜃𝜓)))
132, 3, 4, 5, 6, 9, 12tfinds3 7686 . 2 (𝐴 ∈ On → (𝜑𝜂))
141, 13mpcom 38 1 (𝜑𝜂)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 205  w3a 1085   = wceq 1539  wcel 2108  wral 3063  c0 4253  Oncon0 6251  Lim wlim 6252  suc csuc 6253
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-sep 5218  ax-nul 5225  ax-pr 5347  ax-un 7566
This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3or 1086  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-clab 2716  df-cleq 2730  df-clel 2817  df-nfc 2888  df-ne 2943  df-ral 3068  df-rex 3069  df-rab 3072  df-v 3424  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-pss 3902  df-nul 4254  df-if 4457  df-pw 4532  df-sn 4559  df-pr 4561  df-tp 4563  df-op 4565  df-uni 4837  df-br 5071  df-opab 5133  df-tr 5188  df-eprel 5486  df-po 5494  df-so 5495  df-fr 5535  df-we 5537  df-ord 6254  df-on 6255  df-lim 6256  df-suc 6257
This theorem is referenced by:  grur1cld  41739
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