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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 13338 | . . . . 5 ⊢ ((𝑊 ∈ 𝐴 ∧ 𝐷 ∈ ℕ ∧ 𝐶 ∈ 𝑉) → ((𝑊 sSet 〈𝐷, 𝐶〉) ↾ (V ∖ {𝐷})) = (𝑊 ↾ (V ∖ {𝐷}))) | |
| 3 | 1, 2 | mp3an2 1362 | . . . 4 ⊢ ((𝑊 ∈ 𝐴 ∧ 𝐶 ∈ 𝑉) → ((𝑊 sSet 〈𝐷, 𝐶〉) ↾ (V ∖ {𝐷})) = (𝑊 ↾ (V ∖ {𝐷}))) |
| 4 | 3 | fveq1d 5677 | . . 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 2828 | . . . . 5 ⊢ (𝐸‘ndx) ∈ V |
| 8 | setsslnid.n | . . . . 5 ⊢ (𝐸‘ndx) ≠ 𝐷 | |
| 9 | eldifsn 3825 | . . . . 5 ⊢ ((𝐸‘ndx) ∈ (V ∖ {𝐷}) ↔ ((𝐸‘ndx) ∈ V ∧ (𝐸‘ndx) ≠ 𝐷)) | |
| 10 | 7, 8, 9 | mpbir2an 951 | . . . 4 ⊢ (𝐸‘ndx) ∈ (V ∖ {𝐷}) |
| 11 | fvres 5699 | . . . 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 5699 | . . . 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 2290 | . 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 13332 | . . . 4 ⊢ ((𝑊 ∈ 𝐴 ∧ 𝐷 ∈ ℕ ∧ 𝐶 ∈ 𝑉) → (𝑊 sSet 〈𝐷, 𝐶〉) ∈ V) | |
| 18 | 1, 17 | mp3an2 1362 | . . 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 13320 | . 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 13320 | . 2 ⊢ ((𝑊 ∈ 𝐴 ∧ 𝐶 ∈ 𝑉) → (𝐸‘𝑊) = (𝑊‘(𝐸‘ndx))) |
| 23 | 15, 20, 22 | 3eqtr4rd 2278 | 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 1398 ∈ wcel 2205 ≠ wne 2414 Vcvv 2815 ∖ cdif 3211 {csn 3694 〈cop 3697 ↾ cres 4756 ‘cfv 5357 (class class class)co 6058 ℕcn 9257 ndxcnx 13297 sSet csts 13298 Slot cslot 13299 |
| 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 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2207 ax-14 2208 ax-ext 2216 ax-sep 4233 ax-pow 4292 ax-pr 4327 ax-un 4559 ax-setind 4664 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ne 2415 df-ral 2527 df-rex 2528 df-rab 2531 df-v 2817 df-sbc 3046 df-dif 3216 df-un 3218 df-in 3220 df-ss 3227 df-nul 3513 df-pw 3676 df-sn 3700 df-pr 3701 df-op 3703 df-uni 3920 df-br 4115 df-opab 4177 df-mpt 4178 df-id 4419 df-xp 4760 df-rel 4761 df-cnv 4762 df-co 4763 df-dm 4764 df-rn 4765 df-res 4766 df-iota 5317 df-fun 5359 df-fv 5365 df-ov 6061 df-oprab 6062 df-mpo 6063 df-slot 13304 df-sets 13307 |
| This theorem is referenced by: resseqnbasd 13374 mgpbasg 14169 mgpscag 14170 mgptsetg 14171 mgpdsg 14173 opprsllem 14321 rmodislmod 14629 sralemg 14716 srascag 14720 sravscag 14721 zlmlemg 14906 zlmsca 14910 znbaslemnn 14917 setsmsbasg 15474 setsmsdsg 15475 setsvtx 16176 |
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