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Theorem tfindsd 44367
Description: Deduction associated with tfinds 7799. (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 1119 . . . 4 (𝜑 → (𝑦 ∈ On → (𝜃𝜏)))
98com12 32 . . 3 (𝑦 ∈ On → (𝜑 → (𝜃𝜏)))
10 tfindsd.7 . . . . 5 ((𝜑 ∧ Lim 𝑥 ∧ ∀𝑦𝑥 𝜃) → 𝜓)
11103exp 1119 . . . 4 (𝜑 → (Lim 𝑥 → (∀𝑦𝑥 𝜃𝜓)))
1211com12 32 . . 3 (Lim 𝑥 → (𝜑 → (∀𝑦𝑥 𝜃𝜓)))
132, 3, 4, 5, 6, 9, 12tfinds3 7804 . 2 (𝐴 ∈ On → (𝜑𝜂))
141, 13mpcom 38 1 (𝜑𝜂)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 206  w3a 1086   = wceq 1541  wcel 2113  wral 3048  c0 4282  Oncon0 6314  Lim wlim 6315  suc csuc 6316
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1968  ax-7 2009  ax-8 2115  ax-9 2123  ax-10 2146  ax-11 2162  ax-12 2182  ax-ext 2705  ax-sep 5238  ax-nul 5248  ax-pr 5374  ax-un 7677
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-nf 1785  df-sb 2068  df-clab 2712  df-cleq 2725  df-clel 2808  df-nfc 2882  df-ne 2930  df-ral 3049  df-rex 3058  df-rab 3397  df-v 3439  df-dif 3901  df-un 3903  df-in 3905  df-ss 3915  df-pss 3918  df-nul 4283  df-if 4477  df-pw 4553  df-sn 4578  df-pr 4580  df-op 4584  df-uni 4861  df-br 5096  df-opab 5158  df-tr 5203  df-eprel 5521  df-po 5529  df-so 5530  df-fr 5574  df-we 5576  df-ord 6317  df-on 6318  df-lim 6319  df-suc 6320
This theorem is referenced by:  grur1cld  44389
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