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| Mirrors > Home > MPE Home > Th. List > Mathboxes > findfvcl | Structured version Visualization version GIF version | ||
| Description: Please add description here. (Contributed by Jeff Hoffman, 12-Feb-2008.) |
| Ref | Expression |
|---|---|
| findfvcl.1 | ⊢ (𝜑 → (𝐹‘∅) ∈ 𝑃) |
| findfvcl.2 | ⊢ (𝑦 ∈ ω → (𝜑 → ((𝐹‘𝑦) ∈ 𝑃 → (𝐹‘suc 𝑦) ∈ 𝑃))) |
| Ref | Expression |
|---|---|
| findfvcl | ⊢ (𝐴 ∈ ω → (𝜑 → (𝐹‘𝐴) ∈ 𝑃)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fveleq 37331 | . 2 ⊢ (𝑥 = ∅ → ((𝜑 → (𝐹‘𝑥) ∈ 𝑃) ↔ (𝜑 → (𝐹‘∅) ∈ 𝑃))) | |
| 2 | fveleq 37331 | . 2 ⊢ (𝑥 = 𝑦 → ((𝜑 → (𝐹‘𝑥) ∈ 𝑃) ↔ (𝜑 → (𝐹‘𝑦) ∈ 𝑃))) | |
| 3 | fveleq 37331 | . 2 ⊢ (𝑥 = suc 𝑦 → ((𝜑 → (𝐹‘𝑥) ∈ 𝑃) ↔ (𝜑 → (𝐹‘suc 𝑦) ∈ 𝑃))) | |
| 4 | fveleq 37331 | . 2 ⊢ (𝑥 = 𝐴 → ((𝜑 → (𝐹‘𝑥) ∈ 𝑃) ↔ (𝜑 → (𝐹‘𝐴) ∈ 𝑃))) | |
| 5 | findfvcl.1 | . 2 ⊢ (𝜑 → (𝐹‘∅) ∈ 𝑃) | |
| 6 | findfvcl.2 | . . 3 ⊢ (𝑦 ∈ ω → (𝜑 → ((𝐹‘𝑦) ∈ 𝑃 → (𝐹‘suc 𝑦) ∈ 𝑃))) | |
| 7 | 6 | a2d 30 | . 2 ⊢ (𝑦 ∈ ω → ((𝜑 → (𝐹‘𝑦) ∈ 𝑃) → (𝜑 → (𝐹‘suc 𝑦) ∈ 𝑃))) |
| 8 | 1, 2, 3, 4, 5, 7 | finds 7908 | 1 ⊢ (𝐴 ∈ ω → (𝜑 → (𝐹‘𝐴) ∈ 𝑃)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2144 ∅c0 4278 suc csuc 6364 ‘cfv 6538 ωcom 7877 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pr 5390 ax-un 7751 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-br 5103 df-opab 5167 df-tr 5212 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fv 6546 df-om 7878 |
| This theorem is used by: findreccl 37333 |
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