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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 13448 | . . . . 5 ⊢ ((𝑊 ∈ 𝐴 ∧ 𝐷 ∈ ℕ ∧ 𝐶 ∈ 𝑉) → ((𝑊 sSet 〈𝐷, 𝐶〉) ↾ (V ∖ {𝐷})) = (𝑊 ↾ (V ∖ {𝐷}))) | |
| 3 | 1, 2 | mp3an2 1366 | . . . 4 ⊢ ((𝑊 ∈ 𝐴 ∧ 𝐶 ∈ 𝑉) → ((𝑊 sSet 〈𝐷, 𝐶〉) ↾ (V ∖ {𝐷})) = (𝑊 ↾ (V ∖ {𝐷}))) |
| 4 | 3 | fveq1d 5700 | . . 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 2834 | . . . . 5 ⊢ (𝐸‘ndx) ∈ V |
| 8 | setsslnid.n | . . . . 5 ⊢ (𝐸‘ndx) ≠ 𝐷 | |
| 9 | eldifsn 3841 | . . . . 5 ⊢ ((𝐸‘ndx) ∈ (V ∖ {𝐷}) ↔ ((𝐸‘ndx) ∈ V ∧ (𝐸‘ndx) ≠ 𝐷)) | |
| 10 | 7, 8, 9 | mpbir2an 955 | . . . 4 ⊢ (𝐸‘ndx) ∈ (V ∖ {𝐷}) |
| 11 | fvres 5722 | . . . 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 5722 | . . . 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 2294 | . 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 13442 | . . . 4 ⊢ ((𝑊 ∈ 𝐴 ∧ 𝐷 ∈ ℕ ∧ 𝐶 ∈ 𝑉) → (𝑊 sSet 〈𝐷, 𝐶〉) ∈ V) | |
| 18 | 1, 17 | mp3an2 1366 | . . 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 13430 | . 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 13430 | . 2 ⊢ ((𝑊 ∈ 𝐴 ∧ 𝐶 ∈ 𝑉) → (𝐸‘𝑊) = (𝑊‘(𝐸‘ndx))) |
| 23 | 15, 20, 22 | 3eqtr4rd 2282 | 1 ⊢ ((𝑊 ∈ 𝐴 ∧ 𝐶 ∈ 𝑉) → (𝐸‘𝑊) = (𝐸‘(𝑊 sSet 〈𝐷, 𝐶〉))) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 104 = wceq 1402 ∈ wcel 2209 ≠ wne 2420 Vcvv 2821 ∖ cdif 3217 {csn 3709 〈cop 3712 ↾ cres 4778 ‘cfv 5380 (class class class)co 6088 ℕcn 9313 ndxcnx 13407 sSet csts 13408 Slot cslot 13409 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4251 ax-pow 4313 ax-pr 4348 ax-un 4580 ax-setind 4686 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-sbc 3052 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-nul 3521 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4132 df-opab 4194 df-mpt 4195 df-id 4440 df-xp 4782 df-rel 4783 df-cnv 4784 df-co 4785 df-dm 4786 df-rn 4787 df-res 4788 df-iota 5340 df-fun 5382 df-fv 5388 df-ov 6091 df-oprab 6092 df-mpo 6093 df-slot 13414 df-sets 13417 |
| This theorem is used by: resseqnbasd 13486 mgpbasg 14331 mgpscag 14333 mgptsetg 14334 mgpdsg 14336 opprsllem 14488 rmodislmod 14797 sralemg 14884 srascag 14888 sravscag 14889 zlmlemg 15072 zlmsca 15076 znbaslemnn 15083 setsmsbasg 15705 setsmsdsg 15706 setsvtx 16497 |
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