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| Mirrors > Home > MPE Home > Th. List > strfvd | Structured version Visualization version GIF version | ||
| Description: Deduction version of strfv 17264. (Contributed by Mario Carneiro, 15-Nov-2014.) |
| Ref | Expression |
|---|---|
| strfvd.e | ⊢ 𝐸 = Slot (𝐸‘ndx) |
| strfvd.s | ⊢ (𝜑 → 𝑆 ∈ 𝑉) |
| strfvd.f | ⊢ (𝜑 → Fun 𝑆) |
| strfvd.n | ⊢ (𝜑 → 〈(𝐸‘ndx), 𝐶〉 ∈ 𝑆) |
| Ref | Expression |
|---|---|
| strfvd | ⊢ (𝜑 → 𝐶 = (𝐸‘𝑆)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | strfvd.e | . . 3 ⊢ 𝐸 = Slot (𝐸‘ndx) | |
| 2 | strfvd.s | . . 3 ⊢ (𝜑 → 𝑆 ∈ 𝑉) | |
| 3 | 1, 2 | strfvnd 17246 | . 2 ⊢ (𝜑 → (𝐸‘𝑆) = (𝑆‘(𝐸‘ndx))) |
| 4 | strfvd.f | . . 3 ⊢ (𝜑 → Fun 𝑆) | |
| 5 | strfvd.n | . . 3 ⊢ (𝜑 → 〈(𝐸‘ndx), 𝐶〉 ∈ 𝑆) | |
| 6 | funopfv 6932 | . . 3 ⊢ (Fun 𝑆 → (〈(𝐸‘ndx), 𝐶〉 ∈ 𝑆 → (𝑆‘(𝐸‘ndx)) = 𝐶)) | |
| 7 | 4, 5, 6 | sylc 66 | . 2 ⊢ (𝜑 → (𝑆‘(𝐸‘ndx)) = 𝐶) |
| 8 | 3, 7 | eqtr2d 2799 | 1 ⊢ (𝜑 → 𝐶 = (𝐸‘𝑆)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1570 ∈ wcel 2143 〈cop 4596 Fun wfun 6532 ‘cfv 6538 Slot cslot 17242 ndxcnx 17254 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5258 ax-nul 5270 ax-pr 5406 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-ral 3080 df-rex 3090 df-rab 3417 df-v 3457 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4288 df-if 4489 df-sn 4591 df-pr 4593 df-op 4597 df-uni 4874 df-br 5111 df-opab 5175 df-mpt 5194 df-id 5558 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-iota 6494 df-fun 6540 df-fv 6546 df-slot 17243 |
| This theorem is referenced by: strssd 17266 |
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