| Mathbox for Norm Megill |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > lflsc0N | Structured version Visualization version GIF version | ||
| Description: The scalar product with the zero functional is the zero functional. (Contributed by NM, 7-Oct-2014.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| lflsc0.v | ⊢ 𝑉 = (Base‘𝑊) |
| lflsc0.d | ⊢ 𝐷 = (Scalar‘𝑊) |
| lflsc0.k | ⊢ 𝐾 = (Base‘𝐷) |
| lflsc0.t | ⊢ · = (.r‘𝐷) |
| lflsc0.o | ⊢ 0 = (0g‘𝐷) |
| lflsc0.w | ⊢ (𝜑 → 𝑊 ∈ LMod) |
| lflsc0.x | ⊢ (𝜑 → 𝑋 ∈ 𝐾) |
| Ref | Expression |
|---|---|
| lflsc0N | ⊢ (𝜑 → ((𝑉 × { 0 }) ∘f · (𝑉 × {𝑋})) = (𝑉 × { 0 })) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lflsc0.v | . . . . 5 ⊢ 𝑉 = (Base‘𝑊) | |
| 2 | 1 | fvexi 6887 | . . . 4 ⊢ 𝑉 ∈ V |
| 3 | 2 | a1i 11 | . . 3 ⊢ (𝜑 → 𝑉 ∈ V) |
| 4 | lflsc0.w | . . . . 5 ⊢ (𝜑 → 𝑊 ∈ LMod) | |
| 5 | lflsc0.d | . . . . . 6 ⊢ 𝐷 = (Scalar‘𝑊) | |
| 6 | 5 | lmodring 21104 | . . . . 5 ⊢ (𝑊 ∈ LMod → 𝐷 ∈ Ring) |
| 7 | 4, 6 | syl 18 | . . . 4 ⊢ (𝜑 → 𝐷 ∈ Ring) |
| 8 | lflsc0.k | . . . . 5 ⊢ 𝐾 = (Base‘𝐷) | |
| 9 | lflsc0.o | . . . . 5 ⊢ 0 = (0g‘𝐷) | |
| 10 | 8, 9 | ring0cl 20457 | . . . 4 ⊢ (𝐷 ∈ Ring → 0 ∈ 𝐾) |
| 11 | 7, 10 | syl 18 | . . 3 ⊢ (𝜑 → 0 ∈ 𝐾) |
| 12 | lflsc0.x | . . 3 ⊢ (𝜑 → 𝑋 ∈ 𝐾) | |
| 13 | 3, 11, 12 | ofc12 7706 | . 2 ⊢ (𝜑 → ((𝑉 × { 0 }) ∘f · (𝑉 × {𝑋})) = (𝑉 × {( 0 · 𝑋)})) |
| 14 | lflsc0.t | . . . . . 6 ⊢ · = (.r‘𝐷) | |
| 15 | 8, 14, 9 | ringlz 20485 | . . . . 5 ⊢ ((𝐷 ∈ Ring ∧ 𝑋 ∈ 𝐾) → ( 0 · 𝑋) = 0 ) |
| 16 | 7, 12, 15 | syl2anc 596 | . . . 4 ⊢ (𝜑 → ( 0 · 𝑋) = 0 ) |
| 17 | 16 | sneqd 4595 | . . 3 ⊢ (𝜑 → {( 0 · 𝑋)} = { 0 }) |
| 18 | 17 | xpeq2d 5677 | . 2 ⊢ (𝜑 → (𝑉 × {( 0 · 𝑋)}) = (𝑉 × { 0 })) |
| 19 | 13, 18 | eqtrd 2795 | 1 ⊢ (𝜑 → ((𝑉 × { 0 }) ∘f · (𝑉 × {𝑋})) = (𝑉 × { 0 })) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2145 Vcvv 3450 {csn 4583 × cxp 5645 ‘cfv 6527 (class class class)co 7408 ∘f cof 7674 Basecbs 17348 .rcmulr 17390 Scalarcsca 17392 0gc0g 17571 Ringcrg 20420 LModclmod 21096 |
| 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 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7734 ax-cnex 11227 ax-resscn 11228 ax-1cn 11229 ax-icn 11230 ax-addcl 11231 ax-addrcl 11232 ax-mulcl 11233 ax-mulrcl 11234 ax-mulcom 11235 ax-addass 11236 ax-mulass 11237 ax-distr 11238 ax-i2m1 11239 ax-1ne0 11240 ax-1rid 11241 ax-rnegex 11242 ax-rrecex 11243 ax-cnre 11244 ax-pre-lttri 11245 ax-pre-lttrn 11246 ax-pre-ltadd 11247 ax-pre-mulgt0 11248 |
| 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 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-pss 3918 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5542 df-eprel 5547 df-po 5555 df-so 5556 df-fr 5600 df-we 5602 df-xp 5653 df-rel 5654 df-cnv 5655 df-co 5656 df-dm 5657 df-rn 5658 df-res 5659 df-ima 5660 df-pred 6293 df-ord 6354 df-on 6355 df-lim 6356 df-suc 6357 df-iota 6483 df-fun 6529 df-fn 6530 df-f 6531 df-f1 6532 df-fo 6533 df-f1o 6534 df-fv 6535 df-riota 7365 df-ov 7411 df-oprab 7412 df-mpo 7413 df-of 7676 df-om 7861 df-2nd 7985 df-frecs 8277 df-wrecs 8308 df-recs 8357 df-rdg 8396 df-er 8695 df-en 8952 df-dom 8953 df-sdom 8954 df-pnf 11316 df-mnf 11317 df-xr 11318 df-ltxr 11319 df-le 11320 df-sub 11514 df-neg 11515 df-nn 12305 df-2 12374 df-sets 17303 df-slot 17321 df-ndx 17333 df-base 17349 df-plusg 17402 df-0g 17573 df-mgm 18777 df-sgrp 18869 df-mnd 18885 df-grp 19108 df-minusg 19109 df-cmn 19957 df-abl 19958 df-mgp 20322 df-rng 20336 df-ur 20369 df-ring 20422 df-lmod 21098 |
| This theorem is used by: (None) |
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