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| Mirrors > Home > MPE Home > Th. List > Mathboxes > lindslinindimp2lem3 | Structured version Visualization version GIF version | ||
| Description: Lemma 3 for lindslinindsimp2 49544. (Contributed by AV, 25-Apr-2019.) (Revised by AV, 30-Jul-2019.) |
| Ref | Expression |
|---|---|
| lindslinind.r | ⊢ 𝑅 = (Scalar‘𝑀) |
| lindslinind.b | ⊢ 𝐵 = (Base‘𝑅) |
| lindslinind.0 | ⊢ 0 = (0g‘𝑅) |
| lindslinind.z | ⊢ 𝑍 = (0g‘𝑀) |
| lindslinind.y | ⊢ 𝑌 = ((invg‘𝑅)‘(𝑓‘𝑥)) |
| lindslinind.g | ⊢ 𝐺 = (𝑓 ↾ (𝑆 ∖ {𝑥})) |
| Ref | Expression |
|---|---|
| lindslinindimp2lem3 | ⊢ (((𝑆 ∈ 𝑉 ∧ 𝑀 ∈ LMod) ∧ (𝑆 ⊆ (Base‘𝑀) ∧ 𝑥 ∈ 𝑆) ∧ (𝑓 ∈ (𝐵 ↑m 𝑆) ∧ 𝑓 finSupp 0 )) → 𝐺 finSupp 0 ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lindslinind.g | . 2 ⊢ 𝐺 = (𝑓 ↾ (𝑆 ∖ {𝑥})) | |
| 2 | simp3r 1221 | . . 3 ⊢ (((𝑆 ∈ 𝑉 ∧ 𝑀 ∈ LMod) ∧ (𝑆 ⊆ (Base‘𝑀) ∧ 𝑥 ∈ 𝑆) ∧ (𝑓 ∈ (𝐵 ↑m 𝑆) ∧ 𝑓 finSupp 0 )) → 𝑓 finSupp 0 ) | |
| 3 | lindslinind.0 | . . . . 5 ⊢ 0 = (0g‘𝑅) | |
| 4 | 3 | fvexi 6897 | . . . 4 ⊢ 0 ∈ V |
| 5 | 4 | a1i 11 | . . 3 ⊢ (((𝑆 ∈ 𝑉 ∧ 𝑀 ∈ LMod) ∧ (𝑆 ⊆ (Base‘𝑀) ∧ 𝑥 ∈ 𝑆) ∧ (𝑓 ∈ (𝐵 ↑m 𝑆) ∧ 𝑓 finSupp 0 )) → 0 ∈ V) |
| 6 | 2, 5 | fsuppres 9378 | . 2 ⊢ (((𝑆 ∈ 𝑉 ∧ 𝑀 ∈ LMod) ∧ (𝑆 ⊆ (Base‘𝑀) ∧ 𝑥 ∈ 𝑆) ∧ (𝑓 ∈ (𝐵 ↑m 𝑆) ∧ 𝑓 finSupp 0 )) → (𝑓 ↾ (𝑆 ∖ {𝑥})) finSupp 0 ) |
| 7 | 1, 6 | eqbrtrid 5140 | 1 ⊢ (((𝑆 ∈ 𝑉 ∧ 𝑀 ∈ LMod) ∧ (𝑆 ⊆ (Base‘𝑀) ∧ 𝑥 ∈ 𝑆) ∧ (𝑓 ∈ (𝐵 ↑m 𝑆) ∧ 𝑓 finSupp 0 )) → 𝐺 finSupp 0 ) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∧ w3a 1103 = wceq 1570 ∈ wcel 2145 Vcvv 3451 ∖ cdif 3896 ⊆ wss 3899 {csn 4584 class class class wbr 5103 ↾ cres 5653 ‘cfv 6537 (class class class)co 7418 ↑m cmap 8840 finSupp cfsupp 9346 Basecbs 17380 Scalarcsca 17424 0gc0g 17603 invgcminusg 19138 LModclmod 21128 |
| 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 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-sep 5249 ax-nul 5260 ax-pr 5391 ax-un 7749 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3078 df-rex 3088 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-opab 5168 df-tr 5213 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-ov 7421 df-oprab 7422 df-mpo 7423 df-om 7876 df-supp 8171 df-1o 8469 df-en 8967 df-fin 8970 df-fsupp 9347 |
| This theorem is used by: lindslinindimp2lem4 49542 |
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