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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 2761 | . . . . . . 7 ⊢ (Scalar‘𝑊) = (Scalar‘𝑊) | |
| 4 | eqid 2761 | . . . . . . 7 ⊢ (Base‘(Scalar‘𝑊)) = (Base‘(Scalar‘𝑊)) | |
| 5 | 2, 3, 4 | resvid2 33477 | . . . . . 6 ⊢ (((Base‘(Scalar‘𝑊)) ⊆ 𝐴 ∧ 𝑊 ∈ V ∧ 𝐴 ∈ 𝑉) → 𝑅 = 𝑊) |
| 6 | 5 | fveq2d 6866 | . . . . 5 ⊢ (((Base‘(Scalar‘𝑊)) ⊆ 𝐴 ∧ 𝑊 ∈ V ∧ 𝐴 ∈ 𝑉) → (𝐸‘𝑅) = (𝐸‘𝑊)) |
| 7 | 6 | 3expib 1134 | . . . 4 ⊢ ((Base‘(Scalar‘𝑊)) ⊆ 𝐴 → ((𝑊 ∈ V ∧ 𝐴 ∈ 𝑉) → (𝐸‘𝑅) = (𝐸‘𝑊))) |
| 8 | 2, 3, 4 | resvval2 33478 | . . . . . . 7 ⊢ ((¬ (Base‘(Scalar‘𝑊)) ⊆ 𝐴 ∧ 𝑊 ∈ V ∧ 𝐴 ∈ 𝑉) → 𝑅 = (𝑊 sSet 〈(Scalar‘ndx), ((Scalar‘𝑊) ↾s 𝐴)〉)) |
| 9 | 8 | fveq2d 6866 | . . . . . 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 17235 | . . . . . 6 ⊢ (𝐸‘𝑊) = (𝐸‘(𝑊 sSet 〈(Scalar‘ndx), ((Scalar‘𝑊) ↾s 𝐴)〉)) |
| 13 | 9, 12 | eqtr4di 2814 | . . . . 5 ⊢ ((¬ (Base‘(Scalar‘𝑊)) ⊆ 𝐴 ∧ 𝑊 ∈ V ∧ 𝐴 ∈ 𝑉) → (𝐸‘𝑅) = (𝐸‘𝑊)) |
| 14 | 13 | 3expib 1134 | . . . 4 ⊢ (¬ (Base‘(Scalar‘𝑊)) ⊆ 𝐴 → ((𝑊 ∈ V ∧ 𝐴 ∈ 𝑉) → (𝐸‘𝑅) = (𝐸‘𝑊))) |
| 15 | 7, 14 | pm2.61i 183 | . . 3 ⊢ ((𝑊 ∈ V ∧ 𝐴 ∈ 𝑉) → (𝐸‘𝑅) = (𝐸‘𝑊)) |
| 16 | 10 | str0 17216 | . . . . . . 7 ⊢ ∅ = (𝐸‘∅) |
| 17 | 16 | eqcomi 2770 | . . . . . 6 ⊢ (𝐸‘∅) = ∅ |
| 18 | reldmresv 33475 | . . . . . 6 ⊢ Rel dom ↾v | |
| 19 | 17, 2, 18 | oveqprc 17219 | . . . . 5 ⊢ (¬ 𝑊 ∈ V → (𝐸‘𝑊) = (𝐸‘𝑅)) |
| 20 | 19 | eqcomd 2767 | . . . 4 ⊢ (¬ 𝑊 ∈ V → (𝐸‘𝑅) = (𝐸‘𝑊)) |
| 21 | 20 | adantr 484 | . . 3 ⊢ ((¬ 𝑊 ∈ V ∧ 𝐴 ∈ 𝑉) → (𝐸‘𝑅) = (𝐸‘𝑊)) |
| 22 | 15, 21 | pm2.61ian 821 | . 2 ⊢ (𝐴 ∈ 𝑉 → (𝐸‘𝑅) = (𝐸‘𝑊)) |
| 23 | 1, 22 | eqtr4id 2815 | 1 ⊢ (𝐴 ∈ 𝑉 → 𝐶 = (𝐸‘𝑅)) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ∧ wa 399 ∧ w3a 1097 = wceq 1559 ∈ wcel 2141 ≠ wne 2956 Vcvv 3453 ⊆ wss 3902 ∅c0 4283 〈cop 4585 ‘cfv 6516 (class class class)co 7391 sSet csts 17190 Slot cslot 17208 ndxcnx 17220 Basecbs 17236 ↾s cress 17257 Scalarcsca 17280 ↾v cresv 33473 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5243 ax-nul 5253 ax-pr 5387 ax-un 7713 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3076 df-rex 3086 df-rab 3414 df-v 3455 df-sbc 3743 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4284 df-if 4478 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-br 5098 df-opab 5160 df-mpt 5179 df-id 5538 df-xp 5649 df-rel 5650 df-cnv 5651 df-co 5652 df-dm 5653 df-res 5655 df-iota 6472 df-fun 6518 df-fv 6524 df-ov 7394 df-oprab 7395 df-mpo 7396 df-sets 17191 df-slot 17209 df-resv 33474 |
| This theorem is referenced by: resvbas 33481 resvplusg 33482 resvvsca 33483 resvmulr 33484 |
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