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| Mirrors > Home > MPE Home > Th. List > frpoins2g | Structured version Visualization version GIF version | ||
| Description: Well-Founded Induction schema, using implicit substitution. (Contributed by Scott Fenton, 24-Aug-2022.) |
| Ref | Expression |
|---|---|
| frpoins2g.1 | ⊢ (𝑦 ∈ 𝐴 → (∀𝑧 ∈ Pred (𝑅, 𝐴, 𝑦)𝜓 → 𝜑)) |
| frpoins2g.3 | ⊢ (𝑦 = 𝑧 → (𝜑 ↔ 𝜓)) |
| Ref | Expression |
|---|---|
| frpoins2g | ⊢ ((𝑅 Fr 𝐴 ∧ 𝑅 Po 𝐴 ∧ 𝑅 Se 𝐴) → ∀𝑦 ∈ 𝐴 𝜑) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | frpoins2g.1 | . 2 ⊢ (𝑦 ∈ 𝐴 → (∀𝑧 ∈ Pred (𝑅, 𝐴, 𝑦)𝜓 → 𝜑)) | |
| 2 | nfv 1942 | . 2 ⊢ Ⅎ𝑦𝜓 | |
| 3 | frpoins2g.3 | . 2 ⊢ (𝑦 = 𝑧 → (𝜑 ↔ 𝜓)) | |
| 4 | 1, 2, 3 | frpoins2fg 6345 | 1 ⊢ ((𝑅 Fr 𝐴 ∧ 𝑅 Po 𝐴 ∧ 𝑅 Se 𝐴) → ∀𝑦 ∈ 𝐴 𝜑) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 209 ∧ w3a 1101 ∈ wcel 2141 ∀wral 3077 Po wpo 5567 Fr wfr 5611 Se wse 5612 Predcpred 6301 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1823 ax-4 1837 ax-5 1938 ax-6 1995 ax-7 2036 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5256 ax-pr 5404 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1571 df-fal 1581 df-ex 1808 df-nf 1812 df-sb 2095 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3078 df-rex 3088 df-rab 3415 df-v 3455 df-sbc 3744 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4487 df-pw 4563 df-sn 4589 df-pr 4591 df-op 4595 df-br 5109 df-opab 5173 df-po 5569 df-fr 5614 df-se 5615 df-xp 5667 df-cnv 5669 df-dm 5671 df-rn 5672 df-res 5673 df-ima 5674 df-pred 6302 |
| This theorem is referenced by: frpoins3g 6347 frpoins3xpg 8135 frpoins3xp3g 8136 fpr3g 8281 |
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