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Theorem frpoins2g 6317
Description: Well-Founded Induction schema, using implicit substitution. (Contributed by Scott Fenton, 24-Aug-2022.)
Hypotheses
Ref Expression
frpoins2g.1 (𝑦𝐴 → (∀𝑧 ∈ Pred (𝑅, 𝐴, 𝑦)𝜓𝜑))
frpoins2g.3 (𝑦 = 𝑧 → (𝜑𝜓))
Assertion
Ref Expression
frpoins2g ((𝑅 Fr 𝐴𝑅 Po 𝐴𝑅 Se 𝐴) → ∀𝑦𝐴 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 (𝑦𝐴 → (∀𝑧 ∈ Pred (𝑅, 𝐴, 𝑦)𝜓𝜑))
2 nfv 1924 . 2 𝑦𝜓
3 frpoins2g.3 . 2 (𝑦 = 𝑧 → (𝜑𝜓))
41, 2, 3frpoins2fg 6316 1 ((𝑅 Fr 𝐴𝑅 Po 𝐴𝑅 Se 𝐴) → ∀𝑦𝐴 𝜑)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 208  w3a 1095  wcel 2132  wral 3066   Po wpo 5542   Fr wfr 5586   Se wse 5587  Predcpred 6272
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1805  ax-4 1819  ax-5 1920  ax-6 1977  ax-7 2018  ax-8 2134  ax-9 2142  ax-10 2165  ax-11 2181  ax-12 2202  ax-ext 2724  ax-sep 5236  ax-pr 5380
This theorem depends on definitions:  df-bi 209  df-an 399  df-or 857  df-3an 1097  df-tru 1553  df-fal 1563  df-ex 1790  df-nf 1794  df-sb 2081  df-clab 2731  df-cleq 2744  df-clel 2827  df-nfc 2901  df-ne 2948  df-ral 3067  df-rex 3077  df-rab 3405  df-v 3446  df-sbc 3736  df-dif 3898  df-un 3900  df-in 3902  df-ss 3912  df-nul 4277  df-if 4471  df-pw 4547  df-sn 4573  df-pr 4575  df-op 4579  df-br 5091  df-opab 5153  df-po 5544  df-fr 5589  df-se 5590  df-xp 5642  df-cnv 5644  df-dm 5646  df-rn 5647  df-res 5648  df-ima 5649  df-pred 6273
This theorem is referenced by:  frpoins3g  6318  frpoins3xpg  8104  frpoins3xp3g  8105  fpr3g  8250
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