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Theorem bj-findisg 14872
Description: Version of bj-findis 14871 using a class term in the consequent. Constructive proof (from CZF). See the comment of bj-findis 14871 for explanations. (Contributed by BJ, 21-Nov-2019.) (Proof modification is discouraged.)
Hypotheses
Ref Expression
bj-findis.nf0 𝑥𝜓
bj-findis.nf1 𝑥𝜒
bj-findis.nfsuc 𝑥𝜃
bj-findis.0 (𝑥 = ∅ → (𝜓𝜑))
bj-findis.1 (𝑥 = 𝑦 → (𝜑𝜒))
bj-findis.suc (𝑥 = suc 𝑦 → (𝜃𝜑))
bj-findisg.nfa 𝑥𝐴
bj-findisg.nfterm 𝑥𝜏
bj-findisg.term (𝑥 = 𝐴 → (𝜑𝜏))
Assertion
Ref Expression
bj-findisg ((𝜓 ∧ ∀𝑦 ∈ ω (𝜒𝜃)) → (𝐴 ∈ ω → 𝜏))
Distinct variable groups:   𝑥,𝑦   𝜑,𝑦
Allowed substitution hints:   𝜑(𝑥)   𝜓(𝑥,𝑦)   𝜒(𝑥,𝑦)   𝜃(𝑥,𝑦)   𝜏(𝑥,𝑦)   𝐴(𝑥,𝑦)

Proof of Theorem bj-findisg
StepHypRef Expression
1 bj-findis.nf0 . . 3 𝑥𝜓
2 bj-findis.nf1 . . 3 𝑥𝜒
3 bj-findis.nfsuc . . 3 𝑥𝜃
4 bj-findis.0 . . 3 (𝑥 = ∅ → (𝜓𝜑))
5 bj-findis.1 . . 3 (𝑥 = 𝑦 → (𝜑𝜒))
6 bj-findis.suc . . 3 (𝑥 = suc 𝑦 → (𝜃𝜑))
71, 2, 3, 4, 5, 6bj-findis 14871 . 2 ((𝜓 ∧ ∀𝑦 ∈ ω (𝜒𝜃)) → ∀𝑥 ∈ ω 𝜑)
8 bj-findisg.nfa . . 3 𝑥𝐴
9 nfcv 2319 . . 3 𝑥ω
10 bj-findisg.nfterm . . 3 𝑥𝜏
11 bj-findisg.term . . 3 (𝑥 = 𝐴 → (𝜑𝜏))
128, 9, 10, 11bj-rspg 14679 . 2 (∀𝑥 ∈ ω 𝜑 → (𝐴 ∈ ω → 𝜏))
137, 12syl 14 1 ((𝜓 ∧ ∀𝑦 ∈ ω (𝜒𝜃)) → (𝐴 ∈ ω → 𝜏))
Colors of variables: wff set class
Syntax hints:  wi 4  wa 104   = wceq 1353  wnf 1460  wcel 2148  wnfc 2306  wral 2455  c0 3424  suc csuc 4367  ωcom 4591
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 614  ax-in2 615  ax-io 709  ax-5 1447  ax-7 1448  ax-gen 1449  ax-ie1 1493  ax-ie2 1494  ax-8 1504  ax-10 1505  ax-11 1506  ax-i12 1507  ax-bndl 1509  ax-4 1510  ax-17 1526  ax-i9 1530  ax-ial 1534  ax-i5r 1535  ax-13 2150  ax-14 2151  ax-ext 2159  ax-nul 4131  ax-pr 4211  ax-un 4435  ax-setind 4538  ax-bd0 14705  ax-bdim 14706  ax-bdan 14707  ax-bdor 14708  ax-bdn 14709  ax-bdal 14710  ax-bdex 14711  ax-bdeq 14712  ax-bdel 14713  ax-bdsb 14714  ax-bdsep 14776  ax-infvn 14833
This theorem depends on definitions:  df-bi 117  df-tru 1356  df-fal 1359  df-nf 1461  df-sb 1763  df-clab 2164  df-cleq 2170  df-clel 2173  df-nfc 2308  df-ral 2460  df-rex 2461  df-rab 2464  df-v 2741  df-dif 3133  df-un 3135  df-in 3137  df-ss 3144  df-nul 3425  df-sn 3600  df-pr 3601  df-uni 3812  df-int 3847  df-suc 4373  df-iom 4592  df-bdc 14733  df-bj-ind 14819
This theorem is referenced by: (None)
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