| Mathbox for Norm Megill |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > lfl0sc | Structured version Visualization version GIF version | ||
| Description: The (right vector space) scalar product of a functional with zero is the zero functional. Note that the first occurrence of (𝑉 × { 0 }) represents the zero scalar, and the second is the zero functional. (Contributed by NM, 7-Oct-2014.) |
| Ref | Expression |
|---|---|
| lfl0sc.v | ⊢ 𝑉 = (Base‘𝑊) |
| lfl0sc.d | ⊢ 𝐷 = (Scalar‘𝑊) |
| lfl0sc.f | ⊢ 𝐹 = (LFnl‘𝑊) |
| lfl0sc.k | ⊢ 𝐾 = (Base‘𝐷) |
| lfl0sc.t | ⊢ · = (.r‘𝐷) |
| lfl0sc.o | ⊢ 0 = (0g‘𝐷) |
| lfl0sc.w | ⊢ (𝜑 → 𝑊 ∈ LMod) |
| lfl0sc.g | ⊢ (𝜑 → 𝐺 ∈ 𝐹) |
| Ref | Expression |
|---|---|
| lfl0sc | ⊢ (𝜑 → (𝐺 ∘f · (𝑉 × { 0 })) = (𝑉 × { 0 })) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lfl0sc.v | . . . 4 ⊢ 𝑉 = (Base‘𝑊) | |
| 2 | 1 | fvexi 6919 | . . 3 ⊢ 𝑉 ∈ V |
| 3 | 2 | a1i 11 | . 2 ⊢ (𝜑 → 𝑉 ∈ V) |
| 4 | lfl0sc.w | . . 3 ⊢ (𝜑 → 𝑊 ∈ LMod) | |
| 5 | lfl0sc.g | . . 3 ⊢ (𝜑 → 𝐺 ∈ 𝐹) | |
| 6 | lfl0sc.d | . . . 4 ⊢ 𝐷 = (Scalar‘𝑊) | |
| 7 | lfl0sc.k | . . . 4 ⊢ 𝐾 = (Base‘𝐷) | |
| 8 | lfl0sc.f | . . . 4 ⊢ 𝐹 = (LFnl‘𝑊) | |
| 9 | 6, 7, 1, 8 | lflf 40311 | . . 3 ⊢ ((𝑊 ∈ LMod ∧ 𝐺 ∈ 𝐹) → 𝐺:𝑉⟶𝐾) |
| 10 | 4, 5, 9 | syl2anc 596 | . 2 ⊢ (𝜑 → 𝐺:𝑉⟶𝐾) |
| 11 | 6 | lmodring 21170 | . . . 4 ⊢ (𝑊 ∈ LMod → 𝐷 ∈ Ring) |
| 12 | 4, 11 | syl 18 | . . 3 ⊢ (𝜑 → 𝐷 ∈ Ring) |
| 13 | lfl0sc.o | . . . 4 ⊢ 0 = (0g‘𝐷) | |
| 14 | 7, 13 | ring0cl 20523 | . . 3 ⊢ (𝐷 ∈ Ring → 0 ∈ 𝐾) |
| 15 | 12, 14 | syl 18 | . 2 ⊢ (𝜑 → 0 ∈ 𝐾) |
| 16 | lfl0sc.t | . . . 4 ⊢ · = (.r‘𝐷) | |
| 17 | 7, 16, 13 | ringrz 20552 | . . 3 ⊢ ((𝐷 ∈ Ring ∧ 𝑘 ∈ 𝐾) → (𝑘 · 0 ) = 0 ) |
| 18 | 12, 17 | sylan 592 | . 2 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝐾) → (𝑘 · 0 ) = 0 ) |
| 19 | 3, 10, 15, 15, 18 | caofid1 7749 | 1 ⊢ (𝜑 → (𝐺 ∘f · (𝑉 × { 0 })) = (𝑉 × { 0 })) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2147 Vcvv 3454 {csn 4588 × cxp 5653 ⟶wf 6551 ‘cfv 6555 (class class class)co 7440 ∘f cof 7712 Basecbs 17413 .rcmulr 17455 Scalarcsca 17457 0gc0g 17636 Ringcrg 20486 LModclmod 21162 LFnlclfn 40305 |
| 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-rep 5235 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7772 ax-cnex 11280 ax-resscn 11281 ax-1cn 11282 ax-icn 11283 ax-addcl 11284 ax-addrcl 11285 ax-mulcl 11286 ax-mulrcl 11287 ax-mulcom 11288 ax-addass 11289 ax-mulass 11290 ax-distr 11291 ax-i2m1 11292 ax-1ne0 11293 ax-1rid 11294 ax-rnegex 11295 ax-rrecex 11296 ax-cnre 11297 ax-pre-lttri 11298 ax-pre-lttrn 11299 ax-pre-ltadd 11300 ax-pre-mulgt0 11301 |
| 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 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3066 df-ral 3081 df-rex 3091 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-pss 4017 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-iun 4956 df-br 5107 df-opab 5171 df-mpt 5190 df-tr 5216 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6319 df-ord 6380 df-on 6381 df-lim 6382 df-suc 6383 df-iota 6509 df-fun 6557 df-fn 6558 df-f 6559 df-f1 6560 df-fo 6561 df-f1o 6562 df-fv 6563 df-riota 7397 df-ov 7443 df-oprab 7444 df-mpo 7445 df-of 7714 df-om 7899 df-2nd 8023 df-frecs 8324 df-wrecs 8355 df-recs 8404 df-rdg 8443 df-er 8742 df-map 8874 df-en 8999 df-dom 9000 df-sdom 9001 df-pnf 11369 df-mnf 11370 df-xr 11371 df-ltxr 11372 df-le 11373 df-sub 11567 df-neg 11568 df-nn 12360 df-2 12429 df-sets 17368 df-slot 17386 df-ndx 17398 df-base 17414 df-plusg 17467 df-0g 17638 df-mgm 18842 df-sgrp 18934 df-mnd 18950 df-grp 19173 df-minusg 19174 df-cmn 20023 df-abl 20024 df-mgp 20388 df-rng 20402 df-ur 20435 df-ring 20488 df-lmod 21164 df-lfl 40306 |
| This theorem is used by: lkrscss 40346 lfl1dim 40369 lfl1dim2N 40370 |
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