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Theorem frpoins2g 6337
Description: Well-Founded Induction schema, using implicit substitution. (Contributed by Scott Fenton, 24-Aug-2022.)
Hypotheses
Ref Expression
frpoins2g.1 (𝑦 ∈ 𝐴 → (∀𝑧 ∈ Pred (𝑅, 𝐴, 𝑦)𝜓 → 𝜑))
frpoins2g.3 (𝑦 = 𝑧 → (𝜑 ↔ 𝜓))
Assertion
Ref Expression
frpoins2g ((𝑅 Fr 𝐴 ∧ 𝑅 Po 𝐴 ∧ 𝑅 Se 𝐴) → ∀𝑦 ∈ 𝐴 𝜑)
Distinct variable groups:   𝑦,𝐴,𝑧   𝜑,𝑧   𝑦,𝑅,𝑧   𝜓,𝑦
Allowed substitution hints:   𝜑(𝑦)   𝜓(𝑧)

Proof of Theorem frpoins2g
StepHypRef Expression
1 frpoins2g.1 . 2 (𝑦 ∈ 𝐴 → (∀𝑧 ∈ Pred (𝑅, 𝐴, 𝑦)𝜓 → 𝜑))
2 nfv 1947 . 2 Ⅎ𝑦𝜓
3 frpoins2g.3 . 2 (𝑦 = 𝑧 → (𝜑 ↔ 𝜓))
41, 2, 3frpoins2fg 6336 1 ((𝑅 Fr 𝐴 ∧ 𝑅 Po 𝐴 ∧ 𝑅 Se 𝐴) → ∀𝑦 ∈ 𝐴 𝜑)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   → wi 4   ↔ wb 209   ∧ w3a 1103   ∈ wcel 2145  ∀wral 3076   Po wpo 5553   Fr wfr 5597   Se wse 5598  Predcpred 6292
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2213  ax-ext 2732  ax-sep 5248  ax-pr 5390
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-clab 2739  df-cleq 2752  df-clel 2835  df-nfc 2909  df-ne 2956  df-ral 3077  df-rex 3087  df-rab 3413  df-v 3452  df-sbc 3739  df-dif 3901  df-un 3903  df-in 3905  df-ss 3915  df-nul 4279  df-if 4482  df-pw 4558  df-sn 4584  df-pr 4586  df-op 4590  df-br 5103  df-opab 5167  df-po 5555  df-fr 5600  df-se 5601  df-xp 5653  df-cnv 5655  df-dm 5657  df-rn 5658  df-res 5659  df-ima 5660  df-pred 6293
This theorem is used by:  frpoins3g  6338  frpoins3xpg  8135  frpoins3xp3g  8136  fpr3g  8281
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