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| Mirrors > Home > MPE Home > Th. List > Mathboxes > resvlem | Structured version Visualization version GIF version | ||
| Description: Other elements of a scalar restriction. (Contributed by Thierry Arnoux, 6-Sep-2018.) (Revised by AV, 31-Oct-2024.) |
| Ref | Expression |
|---|---|
| resvlem.r | ⊢ 𝑅 = (𝑊 ↾v 𝐴) |
| resvlem.e | ⊢ 𝐶 = (𝐸‘𝑊) |
| resvlem.f | ⊢ 𝐸 = Slot (𝐸‘ndx) |
| resvlem.n | ⊢ (𝐸‘ndx) ≠ (Scalar‘ndx) |
| Ref | Expression |
|---|---|
| resvlem | ⊢ (𝐴 ∈ 𝑉 → 𝐶 = (𝐸‘𝑅)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | resvlem.e | . 2 ⊢ 𝐶 = (𝐸‘𝑊) | |
| 2 | resvlem.r | . . . . . . 7 ⊢ 𝑅 = (𝑊 ↾v 𝐴) | |
| 3 | eqid 2763 | . . . . . . 7 ⊢ (Scalar‘𝑊) = (Scalar‘𝑊) | |
| 4 | eqid 2763 | . . . . . . 7 ⊢ (Base‘(Scalar‘𝑊)) = (Base‘(Scalar‘𝑊)) | |
| 5 | 2, 3, 4 | resvid2 33995 | . . . . . 6 ⊢ (((Base‘(Scalar‘𝑊)) ⊆ 𝐴 ∧ 𝑊 ∈ V ∧ 𝐴 ∈ 𝑉) → 𝑅 = 𝑊) |
| 6 | 5 | fveq2d 6920 | . . . . 5 ⊢ (((Base‘(Scalar‘𝑊)) ⊆ 𝐴 ∧ 𝑊 ∈ V ∧ 𝐴 ∈ 𝑉) → (𝐸‘𝑅) = (𝐸‘𝑊)) |
| 7 | 6 | 3expib 1140 | . . . 4 ⊢ ((Base‘(Scalar‘𝑊)) ⊆ 𝐴 → ((𝑊 ∈ V ∧ 𝐴 ∈ 𝑉) → (𝐸‘𝑅) = (𝐸‘𝑊))) |
| 8 | 2, 3, 4 | resvval2 33996 | . . . . . . 7 ⊢ ((¬ (Base‘(Scalar‘𝑊)) ⊆ 𝐴 ∧ 𝑊 ∈ V ∧ 𝐴 ∈ 𝑉) → 𝑅 = (𝑊 sSet 〈(Scalar‘ndx), ((Scalar‘𝑊) ↾s 𝐴)〉)) |
| 9 | 8 | fveq2d 6920 | . . . . . 6 ⊢ ((¬ (Base‘(Scalar‘𝑊)) ⊆ 𝐴 ∧ 𝑊 ∈ V ∧ 𝐴 ∈ 𝑉) → (𝐸‘𝑅) = (𝐸‘(𝑊 sSet 〈(Scalar‘ndx), ((Scalar‘𝑊) ↾s 𝐴)〉))) |
| 10 | resvlem.f | . . . . . . 7 ⊢ 𝐸 = Slot (𝐸‘ndx) | |
| 11 | resvlem.n | . . . . . . 7 ⊢ (𝐸‘ndx) ≠ (Scalar‘ndx) | |
| 12 | 10, 11 | setsnid 17430 | . . . . . 6 ⊢ (𝐸‘𝑊) = (𝐸‘(𝑊 sSet 〈(Scalar‘ndx), ((Scalar‘𝑊) ↾s 𝐴)〉)) |
| 13 | 9, 12 | eqtr4di 2816 | . . . . 5 ⊢ ((¬ (Base‘(Scalar‘𝑊)) ⊆ 𝐴 ∧ 𝑊 ∈ V ∧ 𝐴 ∈ 𝑉) → (𝐸‘𝑅) = (𝐸‘𝑊)) |
| 14 | 13 | 3expib 1140 | . . . 4 ⊢ (¬ (Base‘(Scalar‘𝑊)) ⊆ 𝐴 → ((𝑊 ∈ V ∧ 𝐴 ∈ 𝑉) → (𝐸‘𝑅) = (𝐸‘𝑊))) |
| 15 | 7, 14 | pm2.61i 184 | . . 3 ⊢ ((𝑊 ∈ V ∧ 𝐴 ∈ 𝑉) → (𝐸‘𝑅) = (𝐸‘𝑊)) |
| 16 | 10 | str0 17411 | . . . . . . 7 ⊢ ∅ = (𝐸‘∅) |
| 17 | 16 | eqcomi 2772 | . . . . . 6 ⊢ (𝐸‘∅) = ∅ |
| 18 | reldmresv 33993 | . . . . . 6 ⊢ Rel dom ↾v | |
| 19 | 17, 2, 18 | oveqprc 17414 | . . . . 5 ⊢ (¬ 𝑊 ∈ V → (𝐸‘𝑊) = (𝐸‘𝑅)) |
| 20 | 19 | eqcomd 2769 | . . . 4 ⊢ (¬ 𝑊 ∈ V → (𝐸‘𝑅) = (𝐸‘𝑊)) |
| 21 | 20 | adantr 486 | . . 3 ⊢ ((¬ 𝑊 ∈ V ∧ 𝐴 ∈ 𝑉) → (𝐸‘𝑅) = (𝐸‘𝑊)) |
| 22 | 15, 21 | pm2.61ian 824 | . 2 ⊢ (𝐴 ∈ 𝑉 → (𝐸‘𝑅) = (𝐸‘𝑊)) |
| 23 | 1, 22 | eqtr4id 2817 | 1 ⊢ (𝐴 ∈ 𝑉 → 𝐶 = (𝐸‘𝑅)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 → wi 4 ∧ wa 401 ∧ w3a 1103 = wceq 1570 ∈ wcel 2147 ≠ wne 2959 Vcvv 3454 ⊆ wss 3900 ∅c0 4281 〈cop 4840 ‘cfv 6566 (class class class)co 7451 sSet csts 17385 Slot cslot 17403 ndxcnx 17415 Basecbs 17431 ↾s cress 17452 Scalarcsca 17475 ↾v cresv 33991 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-sep 5255 ax-nul 5266 ax-pr 5398 ax-un 7783 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-sbc 3743 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4841 df-uni 4873 df-br 5109 df-opab 5174 df-mpt 5193 df-id 5553 df-xp 5664 df-rel 5665 df-cnv 5666 df-co 5667 df-dm 5668 df-res 5670 df-iota 6520 df-fun 6568 df-fv 6574 df-ov 7454 df-oprab 7455 df-mpo 7456 df-sets 17386 df-slot 17404 df-resv 33992 |
| This theorem is used by: resvbas 33999 resvplusg 34000 resvvsca 34001 resvmulr 34002 |
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