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| Mirrors > Home > ILE Home > Th. List > setsslnid | GIF version | ||
| Description: Value of the structure replacement function at an untouched index. (Contributed by Mario Carneiro, 1-Dec-2014.) (Revised by Jim Kingdon, 24-Jan-2023.) |
| Ref | Expression |
|---|---|
| setsslid.e | ⊢ (𝐸 = Slot (𝐸‘ndx) ∧ (𝐸‘ndx) ∈ ℕ) |
| setsslnid.n | ⊢ (𝐸‘ndx) ≠ 𝐷 |
| setsslnid.d | ⊢ 𝐷 ∈ ℕ |
| Ref | Expression |
|---|---|
| setsslnid | ⊢ ((𝑊 ∈ 𝐴 ∧ 𝐶 ∈ 𝑉) → (𝐸‘𝑊) = (𝐸‘(𝑊 sSet 〈𝐷, 𝐶〉))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | setsslnid.d | . . . . 5 ⊢ 𝐷 ∈ ℕ | |
| 2 | setsresg 13056 | . . . . 5 ⊢ ((𝑊 ∈ 𝐴 ∧ 𝐷 ∈ ℕ ∧ 𝐶 ∈ 𝑉) → ((𝑊 sSet 〈𝐷, 𝐶〉) ↾ (V ∖ {𝐷})) = (𝑊 ↾ (V ∖ {𝐷}))) | |
| 3 | 1, 2 | mp3an2 1359 | . . . 4 ⊢ ((𝑊 ∈ 𝐴 ∧ 𝐶 ∈ 𝑉) → ((𝑊 sSet 〈𝐷, 𝐶〉) ↾ (V ∖ {𝐷})) = (𝑊 ↾ (V ∖ {𝐷}))) |
| 4 | 3 | fveq1d 5625 | . . 3 ⊢ ((𝑊 ∈ 𝐴 ∧ 𝐶 ∈ 𝑉) → (((𝑊 sSet 〈𝐷, 𝐶〉) ↾ (V ∖ {𝐷}))‘(𝐸‘ndx)) = ((𝑊 ↾ (V ∖ {𝐷}))‘(𝐸‘ndx))) |
| 5 | setsslid.e | . . . . . . 7 ⊢ (𝐸 = Slot (𝐸‘ndx) ∧ (𝐸‘ndx) ∈ ℕ) | |
| 6 | 5 | simpri 113 | . . . . . 6 ⊢ (𝐸‘ndx) ∈ ℕ |
| 7 | 6 | elexi 2812 | . . . . 5 ⊢ (𝐸‘ndx) ∈ V |
| 8 | setsslnid.n | . . . . 5 ⊢ (𝐸‘ndx) ≠ 𝐷 | |
| 9 | eldifsn 3794 | . . . . 5 ⊢ ((𝐸‘ndx) ∈ (V ∖ {𝐷}) ↔ ((𝐸‘ndx) ∈ V ∧ (𝐸‘ndx) ≠ 𝐷)) | |
| 10 | 7, 8, 9 | mpbir2an 948 | . . . 4 ⊢ (𝐸‘ndx) ∈ (V ∖ {𝐷}) |
| 11 | fvres 5647 | . . . 4 ⊢ ((𝐸‘ndx) ∈ (V ∖ {𝐷}) → (((𝑊 sSet 〈𝐷, 𝐶〉) ↾ (V ∖ {𝐷}))‘(𝐸‘ndx)) = ((𝑊 sSet 〈𝐷, 𝐶〉)‘(𝐸‘ndx))) | |
| 12 | 10, 11 | ax-mp 5 | . . 3 ⊢ (((𝑊 sSet 〈𝐷, 𝐶〉) ↾ (V ∖ {𝐷}))‘(𝐸‘ndx)) = ((𝑊 sSet 〈𝐷, 𝐶〉)‘(𝐸‘ndx)) |
| 13 | fvres 5647 | . . . 4 ⊢ ((𝐸‘ndx) ∈ (V ∖ {𝐷}) → ((𝑊 ↾ (V ∖ {𝐷}))‘(𝐸‘ndx)) = (𝑊‘(𝐸‘ndx))) | |
| 14 | 10, 13 | ax-mp 5 | . . 3 ⊢ ((𝑊 ↾ (V ∖ {𝐷}))‘(𝐸‘ndx)) = (𝑊‘(𝐸‘ndx)) |
| 15 | 4, 12, 14 | 3eqtr3g 2285 | . 2 ⊢ ((𝑊 ∈ 𝐴 ∧ 𝐶 ∈ 𝑉) → ((𝑊 sSet 〈𝐷, 𝐶〉)‘(𝐸‘ndx)) = (𝑊‘(𝐸‘ndx))) |
| 16 | 5 | simpli 111 | . . 3 ⊢ 𝐸 = Slot (𝐸‘ndx) |
| 17 | setsex 13050 | . . . 4 ⊢ ((𝑊 ∈ 𝐴 ∧ 𝐷 ∈ ℕ ∧ 𝐶 ∈ 𝑉) → (𝑊 sSet 〈𝐷, 𝐶〉) ∈ V) | |
| 18 | 1, 17 | mp3an2 1359 | . . 3 ⊢ ((𝑊 ∈ 𝐴 ∧ 𝐶 ∈ 𝑉) → (𝑊 sSet 〈𝐷, 𝐶〉) ∈ V) |
| 19 | 6 | a1i 9 | . . 3 ⊢ ((𝑊 ∈ 𝐴 ∧ 𝐶 ∈ 𝑉) → (𝐸‘ndx) ∈ ℕ) |
| 20 | 16, 18, 19 | strnfvnd 13038 | . 2 ⊢ ((𝑊 ∈ 𝐴 ∧ 𝐶 ∈ 𝑉) → (𝐸‘(𝑊 sSet 〈𝐷, 𝐶〉)) = ((𝑊 sSet 〈𝐷, 𝐶〉)‘(𝐸‘ndx))) |
| 21 | simpl 109 | . . 3 ⊢ ((𝑊 ∈ 𝐴 ∧ 𝐶 ∈ 𝑉) → 𝑊 ∈ 𝐴) | |
| 22 | 16, 21, 19 | strnfvnd 13038 | . 2 ⊢ ((𝑊 ∈ 𝐴 ∧ 𝐶 ∈ 𝑉) → (𝐸‘𝑊) = (𝑊‘(𝐸‘ndx))) |
| 23 | 15, 20, 22 | 3eqtr4rd 2273 | 1 ⊢ ((𝑊 ∈ 𝐴 ∧ 𝐶 ∈ 𝑉) → (𝐸‘𝑊) = (𝐸‘(𝑊 sSet 〈𝐷, 𝐶〉))) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 = wceq 1395 ∈ wcel 2200 ≠ wne 2400 Vcvv 2799 ∖ cdif 3194 {csn 3666 〈cop 3669 ↾ cres 4718 ‘cfv 5314 (class class class)co 5994 ℕcn 9098 ndxcnx 13015 sSet csts 13016 Slot cslot 13017 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-sep 4201 ax-pow 4257 ax-pr 4292 ax-un 4521 ax-setind 4626 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-fal 1401 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ne 2401 df-ral 2513 df-rex 2514 df-rab 2517 df-v 2801 df-sbc 3029 df-dif 3199 df-un 3201 df-in 3203 df-ss 3210 df-nul 3492 df-pw 3651 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3888 df-br 4083 df-opab 4145 df-mpt 4146 df-id 4381 df-xp 4722 df-rel 4723 df-cnv 4724 df-co 4725 df-dm 4726 df-rn 4727 df-res 4728 df-iota 5274 df-fun 5316 df-fv 5322 df-ov 5997 df-oprab 5998 df-mpo 5999 df-slot 13022 df-sets 13025 |
| This theorem is referenced by: resseqnbasd 13092 mgpbasg 13875 mgpscag 13876 mgptsetg 13877 mgpdsg 13879 opprsllem 14023 rmodislmod 14300 sralemg 14387 srascag 14391 sravscag 14392 zlmlemg 14577 zlmsca 14581 znbaslemnn 14588 setsmsbasg 15138 setsmsdsg 15139 setsvtx 15837 |
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