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| Mirrors > Home > MPE Home > Th. List > strss | Structured version Visualization version GIF version | ||
| Description: Propagate component extraction to a structure 𝑇 from a subset structure 𝑆. (Contributed by Mario Carneiro, 11-Oct-2013.) (Revised by Mario Carneiro, 15-Jan-2014.) |
| Ref | Expression |
|---|---|
| strss.t | ⊢ 𝑇 ∈ V |
| strss.f | ⊢ Fun 𝑇 |
| strss.s | ⊢ 𝑆 ⊆ 𝑇 |
| strss.e | ⊢ 𝐸 = Slot (𝐸‘ndx) |
| strss.n | ⊢ 〈(𝐸‘ndx), 𝐶〉 ∈ 𝑆 |
| Ref | Expression |
|---|---|
| strss | ⊢ (𝐸‘𝑇) = (𝐸‘𝑆) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | strss.e | . . 3 ⊢ 𝐸 = Slot (𝐸‘ndx) | |
| 2 | strss.t | . . . 4 ⊢ 𝑇 ∈ V | |
| 3 | 2 | a1i 11 | . . 3 ⊢ (⊤ → 𝑇 ∈ V) |
| 4 | strss.f | . . . 4 ⊢ Fun 𝑇 | |
| 5 | 4 | a1i 11 | . . 3 ⊢ (⊤ → Fun 𝑇) |
| 6 | strss.s | . . . 4 ⊢ 𝑆 ⊆ 𝑇 | |
| 7 | 6 | a1i 11 | . . 3 ⊢ (⊤ → 𝑆 ⊆ 𝑇) |
| 8 | strss.n | . . . 4 ⊢ 〈(𝐸‘ndx), 𝐶〉 ∈ 𝑆 | |
| 9 | 8 | a1i 11 | . . 3 ⊢ (⊤ → 〈(𝐸‘ndx), 𝐶〉 ∈ 𝑆) |
| 10 | 1, 3, 5, 7, 9 | strssd 17268 | . 2 ⊢ (⊤ → (𝐸‘𝑇) = (𝐸‘𝑆)) |
| 11 | 10 | mptru 1575 | 1 ⊢ (𝐸‘𝑇) = (𝐸‘𝑆) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1568 ⊤wtru 1569 ∈ wcel 2150 Vcvv 3462 ⊆ wss 3913 〈cop 4600 Fun wfun 6534 ‘cfv 6540 Slot cslot 17244 ndxcnx 17256 |
| 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 2152 ax-9 2160 ax-10 2183 ax-11 2199 ax-12 2220 ax-ext 2742 ax-sep 5262 ax-nul 5274 ax-pr 5408 |
| 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 2099 df-mo 2574 df-eu 2604 df-clab 2749 df-cleq 2762 df-clel 2845 df-nfc 2919 df-ne 2966 df-ral 3087 df-rex 3097 df-rab 3424 df-v 3464 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4295 df-if 4493 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4878 df-br 5115 df-opab 5179 df-mpt 5198 df-id 5560 df-xp 5671 df-rel 5672 df-cnv 5673 df-co 5674 df-dm 5675 df-iota 6496 df-fun 6542 df-fv 6548 df-slot 17245 |
| This theorem is referenced by: grpss 19024 |
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