Mathbox for Alexander van der Vekens |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > Mathboxes > lincext2 | Structured version Visualization version GIF version |
Description: Property 2 of an extension of a linear combination. (Contributed by AV, 20-Apr-2019.) (Revised by AV, 30-Jul-2019.) |
Ref | Expression |
---|---|
lincext.b | ⊢ 𝐵 = (Base‘𝑀) |
lincext.r | ⊢ 𝑅 = (Scalar‘𝑀) |
lincext.e | ⊢ 𝐸 = (Base‘𝑅) |
lincext.0 | ⊢ 0 = (0g‘𝑅) |
lincext.z | ⊢ 𝑍 = (0g‘𝑀) |
lincext.n | ⊢ 𝑁 = (invg‘𝑅) |
lincext.f | ⊢ 𝐹 = (𝑧 ∈ 𝑆 ↦ if(𝑧 = 𝑋, (𝑁‘𝑌), (𝐺‘𝑧))) |
Ref | Expression |
---|---|
lincext2 | ⊢ (((𝑀 ∈ LMod ∧ 𝑆 ∈ 𝒫 𝐵) ∧ (𝑌 ∈ 𝐸 ∧ 𝑋 ∈ 𝑆 ∧ 𝐺 ∈ (𝐸 ↑m (𝑆 ∖ {𝑋}))) ∧ 𝐺 finSupp 0 ) → 𝐹 finSupp 0 ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fvex 6769 | . . . . . 6 ⊢ (𝑁‘𝑌) ∈ V | |
2 | fvex 6769 | . . . . . 6 ⊢ (𝐺‘𝑧) ∈ V | |
3 | 1, 2 | ifex 4506 | . . . . 5 ⊢ if(𝑧 = 𝑋, (𝑁‘𝑌), (𝐺‘𝑧)) ∈ V |
4 | lincext.f | . . . . 5 ⊢ 𝐹 = (𝑧 ∈ 𝑆 ↦ if(𝑧 = 𝑋, (𝑁‘𝑌), (𝐺‘𝑧))) | |
5 | 3, 4 | dmmpti 6561 | . . . 4 ⊢ dom 𝐹 = 𝑆 |
6 | 5 | difeq1i 4049 | . . 3 ⊢ (dom 𝐹 ∖ (𝑆 ∖ {𝑋})) = (𝑆 ∖ (𝑆 ∖ {𝑋})) |
7 | snssi 4738 | . . . . . . 7 ⊢ (𝑋 ∈ 𝑆 → {𝑋} ⊆ 𝑆) | |
8 | 7 | 3ad2ant2 1132 | . . . . . 6 ⊢ ((𝑌 ∈ 𝐸 ∧ 𝑋 ∈ 𝑆 ∧ 𝐺 ∈ (𝐸 ↑m (𝑆 ∖ {𝑋}))) → {𝑋} ⊆ 𝑆) |
9 | 8 | 3ad2ant2 1132 | . . . . 5 ⊢ (((𝑀 ∈ LMod ∧ 𝑆 ∈ 𝒫 𝐵) ∧ (𝑌 ∈ 𝐸 ∧ 𝑋 ∈ 𝑆 ∧ 𝐺 ∈ (𝐸 ↑m (𝑆 ∖ {𝑋}))) ∧ 𝐺 finSupp 0 ) → {𝑋} ⊆ 𝑆) |
10 | dfss4 4189 | . . . . 5 ⊢ ({𝑋} ⊆ 𝑆 ↔ (𝑆 ∖ (𝑆 ∖ {𝑋})) = {𝑋}) | |
11 | 9, 10 | sylib 217 | . . . 4 ⊢ (((𝑀 ∈ LMod ∧ 𝑆 ∈ 𝒫 𝐵) ∧ (𝑌 ∈ 𝐸 ∧ 𝑋 ∈ 𝑆 ∧ 𝐺 ∈ (𝐸 ↑m (𝑆 ∖ {𝑋}))) ∧ 𝐺 finSupp 0 ) → (𝑆 ∖ (𝑆 ∖ {𝑋})) = {𝑋}) |
12 | snfi 8788 | . . . 4 ⊢ {𝑋} ∈ Fin | |
13 | 11, 12 | eqeltrdi 2847 | . . 3 ⊢ (((𝑀 ∈ LMod ∧ 𝑆 ∈ 𝒫 𝐵) ∧ (𝑌 ∈ 𝐸 ∧ 𝑋 ∈ 𝑆 ∧ 𝐺 ∈ (𝐸 ↑m (𝑆 ∖ {𝑋}))) ∧ 𝐺 finSupp 0 ) → (𝑆 ∖ (𝑆 ∖ {𝑋})) ∈ Fin) |
14 | 6, 13 | eqeltrid 2843 | . 2 ⊢ (((𝑀 ∈ LMod ∧ 𝑆 ∈ 𝒫 𝐵) ∧ (𝑌 ∈ 𝐸 ∧ 𝑋 ∈ 𝑆 ∧ 𝐺 ∈ (𝐸 ↑m (𝑆 ∖ {𝑋}))) ∧ 𝐺 finSupp 0 ) → (dom 𝐹 ∖ (𝑆 ∖ {𝑋})) ∈ Fin) |
15 | lincext.b | . . . 4 ⊢ 𝐵 = (Base‘𝑀) | |
16 | lincext.r | . . . 4 ⊢ 𝑅 = (Scalar‘𝑀) | |
17 | lincext.e | . . . 4 ⊢ 𝐸 = (Base‘𝑅) | |
18 | lincext.0 | . . . 4 ⊢ 0 = (0g‘𝑅) | |
19 | lincext.z | . . . 4 ⊢ 𝑍 = (0g‘𝑀) | |
20 | lincext.n | . . . 4 ⊢ 𝑁 = (invg‘𝑅) | |
21 | 15, 16, 17, 18, 19, 20, 4 | lincext1 45683 | . . 3 ⊢ (((𝑀 ∈ LMod ∧ 𝑆 ∈ 𝒫 𝐵) ∧ (𝑌 ∈ 𝐸 ∧ 𝑋 ∈ 𝑆 ∧ 𝐺 ∈ (𝐸 ↑m (𝑆 ∖ {𝑋})))) → 𝐹 ∈ (𝐸 ↑m 𝑆)) |
22 | 21 | 3adant3 1130 | . 2 ⊢ (((𝑀 ∈ LMod ∧ 𝑆 ∈ 𝒫 𝐵) ∧ (𝑌 ∈ 𝐸 ∧ 𝑋 ∈ 𝑆 ∧ 𝐺 ∈ (𝐸 ↑m (𝑆 ∖ {𝑋}))) ∧ 𝐺 finSupp 0 ) → 𝐹 ∈ (𝐸 ↑m 𝑆)) |
23 | elmapfun 8612 | . . 3 ⊢ (𝐹 ∈ (𝐸 ↑m 𝑆) → Fun 𝐹) | |
24 | 22, 23 | syl 17 | . 2 ⊢ (((𝑀 ∈ LMod ∧ 𝑆 ∈ 𝒫 𝐵) ∧ (𝑌 ∈ 𝐸 ∧ 𝑋 ∈ 𝑆 ∧ 𝐺 ∈ (𝐸 ↑m (𝑆 ∖ {𝑋}))) ∧ 𝐺 finSupp 0 ) → Fun 𝐹) |
25 | elmapi 8595 | . . . . 5 ⊢ (𝐺 ∈ (𝐸 ↑m (𝑆 ∖ {𝑋})) → 𝐺:(𝑆 ∖ {𝑋})⟶𝐸) | |
26 | 4 | fdmdifeqresdif 45565 | . . . . 5 ⊢ (𝐺:(𝑆 ∖ {𝑋})⟶𝐸 → 𝐺 = (𝐹 ↾ (𝑆 ∖ {𝑋}))) |
27 | 25, 26 | syl 17 | . . . 4 ⊢ (𝐺 ∈ (𝐸 ↑m (𝑆 ∖ {𝑋})) → 𝐺 = (𝐹 ↾ (𝑆 ∖ {𝑋}))) |
28 | 27 | 3ad2ant3 1133 | . . 3 ⊢ ((𝑌 ∈ 𝐸 ∧ 𝑋 ∈ 𝑆 ∧ 𝐺 ∈ (𝐸 ↑m (𝑆 ∖ {𝑋}))) → 𝐺 = (𝐹 ↾ (𝑆 ∖ {𝑋}))) |
29 | 28 | 3ad2ant2 1132 | . 2 ⊢ (((𝑀 ∈ LMod ∧ 𝑆 ∈ 𝒫 𝐵) ∧ (𝑌 ∈ 𝐸 ∧ 𝑋 ∈ 𝑆 ∧ 𝐺 ∈ (𝐸 ↑m (𝑆 ∖ {𝑋}))) ∧ 𝐺 finSupp 0 ) → 𝐺 = (𝐹 ↾ (𝑆 ∖ {𝑋}))) |
30 | simp3 1136 | . 2 ⊢ (((𝑀 ∈ LMod ∧ 𝑆 ∈ 𝒫 𝐵) ∧ (𝑌 ∈ 𝐸 ∧ 𝑋 ∈ 𝑆 ∧ 𝐺 ∈ (𝐸 ↑m (𝑆 ∖ {𝑋}))) ∧ 𝐺 finSupp 0 ) → 𝐺 finSupp 0 ) | |
31 | 18 | fvexi 6770 | . . 3 ⊢ 0 ∈ V |
32 | 31 | a1i 11 | . 2 ⊢ (((𝑀 ∈ LMod ∧ 𝑆 ∈ 𝒫 𝐵) ∧ (𝑌 ∈ 𝐸 ∧ 𝑋 ∈ 𝑆 ∧ 𝐺 ∈ (𝐸 ↑m (𝑆 ∖ {𝑋}))) ∧ 𝐺 finSupp 0 ) → 0 ∈ V) |
33 | 14, 22, 24, 29, 30, 32 | resfsupp 9085 | 1 ⊢ (((𝑀 ∈ LMod ∧ 𝑆 ∈ 𝒫 𝐵) ∧ (𝑌 ∈ 𝐸 ∧ 𝑋 ∈ 𝑆 ∧ 𝐺 ∈ (𝐸 ↑m (𝑆 ∖ {𝑋}))) ∧ 𝐺 finSupp 0 ) → 𝐹 finSupp 0 ) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1085 = wceq 1539 ∈ wcel 2108 Vcvv 3422 ∖ cdif 3880 ⊆ wss 3883 ifcif 4456 𝒫 cpw 4530 {csn 4558 class class class wbr 5070 ↦ cmpt 5153 dom cdm 5580 ↾ cres 5582 Fun wfun 6412 ⟶wf 6414 ‘cfv 6418 (class class class)co 7255 ↑m cmap 8573 Fincfn 8691 finSupp cfsupp 9058 Basecbs 16840 Scalarcsca 16891 0gc0g 17067 invgcminusg 18493 LModclmod 20038 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-ral 3068 df-rex 3069 df-reu 3070 df-rmo 3071 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-om 7688 df-1st 7804 df-2nd 7805 df-supp 7949 df-1o 8267 df-map 8575 df-en 8692 df-fin 8695 df-fsupp 9059 df-0g 17069 df-mgm 18241 df-sgrp 18290 df-mnd 18301 df-grp 18495 df-minusg 18496 df-ring 19700 df-lmod 20040 |
This theorem is referenced by: lincext3 45685 lindslinindsimp1 45686 islindeps2 45712 |
Copyright terms: Public domain | W3C validator |