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| Mirrors > Home > MPE Home > Th. List > Mathboxes > tfindsd | Structured version Visualization version GIF version | ||
| Description: Deduction associated with tfinds 7812. (Contributed by Rohan Ridenour, 8-Aug-2023.) |
| Ref | Expression |
|---|---|
| tfindsd.1 | ⊢ (𝑥 = ∅ → (𝜓 ↔ 𝜒)) |
| tfindsd.2 | ⊢ (𝑥 = 𝑦 → (𝜓 ↔ 𝜃)) |
| tfindsd.3 | ⊢ (𝑥 = suc 𝑦 → (𝜓 ↔ 𝜏)) |
| tfindsd.4 | ⊢ (𝑥 = 𝐴 → (𝜓 ↔ 𝜂)) |
| tfindsd.5 | ⊢ (𝜑 → 𝜒) |
| tfindsd.6 | ⊢ ((𝜑 ∧ 𝑦 ∈ On ∧ 𝜃) → 𝜏) |
| tfindsd.7 | ⊢ ((𝜑 ∧ Lim 𝑥 ∧ ∀𝑦 ∈ 𝑥 𝜃) → 𝜓) |
| tfindsd.8 | ⊢ (𝜑 → 𝐴 ∈ On) |
| Ref | Expression |
|---|---|
| tfindsd | ⊢ (𝜑 → 𝜂) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | tfindsd.8 | . 2 ⊢ (𝜑 → 𝐴 ∈ On) | |
| 2 | tfindsd.1 | . . 3 ⊢ (𝑥 = ∅ → (𝜓 ↔ 𝜒)) | |
| 3 | tfindsd.2 | . . 3 ⊢ (𝑥 = 𝑦 → (𝜓 ↔ 𝜃)) | |
| 4 | tfindsd.3 | . . 3 ⊢ (𝑥 = suc 𝑦 → (𝜓 ↔ 𝜏)) | |
| 5 | tfindsd.4 | . . 3 ⊢ (𝑥 = 𝐴 → (𝜓 ↔ 𝜂)) | |
| 6 | tfindsd.5 | . . 3 ⊢ (𝜑 → 𝜒) | |
| 7 | tfindsd.6 | . . . . 5 ⊢ ((𝜑 ∧ 𝑦 ∈ On ∧ 𝜃) → 𝜏) | |
| 8 | 7 | 3exp 1120 | . . . 4 ⊢ (𝜑 → (𝑦 ∈ On → (𝜃 → 𝜏))) |
| 9 | 8 | com12 32 | . . 3 ⊢ (𝑦 ∈ On → (𝜑 → (𝜃 → 𝜏))) |
| 10 | tfindsd.7 | . . . . 5 ⊢ ((𝜑 ∧ Lim 𝑥 ∧ ∀𝑦 ∈ 𝑥 𝜃) → 𝜓) | |
| 11 | 10 | 3exp 1120 | . . . 4 ⊢ (𝜑 → (Lim 𝑥 → (∀𝑦 ∈ 𝑥 𝜃 → 𝜓))) |
| 12 | 11 | com12 32 | . . 3 ⊢ (Lim 𝑥 → (𝜑 → (∀𝑦 ∈ 𝑥 𝜃 → 𝜓))) |
| 13 | 2, 3, 4, 5, 6, 9, 12 | tfinds3 7817 | . 2 ⊢ (𝐴 ∈ On → (𝜑 → 𝜂)) |
| 14 | 1, 13 | mpcom 38 | 1 ⊢ (𝜑 → 𝜂) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ w3a 1087 = wceq 1542 ∈ wcel 2114 ∀wral 3052 ∅c0 4287 Oncon0 6325 Lim wlim 6326 suc csuc 6327 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5243 ax-nul 5253 ax-pr 5379 ax-un 7690 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rab 3402 df-v 3444 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-pss 3923 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-tr 5208 df-eprel 5532 df-po 5540 df-so 5541 df-fr 5585 df-we 5587 df-ord 6328 df-on 6329 df-lim 6330 df-suc 6331 |
| This theorem is referenced by: grur1cld 44588 |
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