| 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 6895 | . . . 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 21000 | . . . . 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 20357 | . . . 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 20383 | . . . . 5 ⊢ ((𝐷 ∈ Ring ∧ 𝑋 ∈ 𝐾) → ( 0 · 𝑋) = 0 ) |
| 16 | 7, 12, 15 | syl2anc 595 | . . . 4 ⊢ (𝜑 → ( 0 · 𝑋) = 0 ) |
| 17 | 16 | sneqd 4600 | . . 3 ⊢ (𝜑 → {( 0 · 𝑋)} = { 0 }) |
| 18 | 17 | xpeq2d 5690 | . 2 ⊢ (𝜑 → (𝑉 × {( 0 · 𝑋)}) = (𝑉 × { 0 })) |
| 19 | 13, 18 | eqtrd 2797 | 1 ⊢ (𝜑 → ((𝑉 × { 0 }) ∘f · (𝑉 × {𝑋})) = (𝑉 × { 0 })) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1569 ∈ wcel 2142 Vcvv 3454 {csn 4588 × cxp 5658 ‘cfv 6536 (class class class)co 7412 ∘f cof 7674 Basecbs 17275 .rcmulr 17317 Scalarcsca 17319 0gc0g 17498 Ringcrg 20321 LModclmod 20992 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 ax-6 1996 ax-7 2037 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-rep 5237 ax-sep 5256 ax-nul 5268 ax-pow 5335 ax-pr 5403 ax-un 7734 ax-cnex 11162 ax-resscn 11163 ax-1cn 11164 ax-icn 11165 ax-addcl 11166 ax-addrcl 11167 ax-mulcl 11168 ax-mulrcl 11169 ax-mulcom 11170 ax-addass 11171 ax-mulass 11172 ax-distr 11173 ax-i2m1 11174 ax-1ne0 11175 ax-1rid 11176 ax-rnegex 11177 ax-rrecex 11178 ax-cnre 11179 ax-pre-lttri 11180 ax-pre-lttrn 11181 ax-pre-ltadd 11182 ax-pre-mulgt0 11183 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1103 df-3an 1104 df-tru 1572 df-fal 1582 df-ex 1809 df-nf 1813 df-sb 2096 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3064 df-ral 3079 df-rex 3089 df-rmo 3368 df-reu 3369 df-rab 3416 df-v 3456 df-sbc 3744 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-pss 3924 df-nul 4286 df-if 4487 df-pw 4563 df-sn 4589 df-pr 4591 df-op 4595 df-uni 4872 df-iun 4957 df-br 5109 df-opab 5173 df-mpt 5192 df-tr 5218 df-id 5555 df-eprel 5560 df-po 5568 df-so 5569 df-fr 5613 df-we 5615 df-xp 5666 df-rel 5667 df-cnv 5668 df-co 5669 df-dm 5670 df-rn 5671 df-res 5672 df-ima 5673 df-pred 6302 df-ord 6363 df-on 6364 df-lim 6365 df-suc 6366 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-of 7676 df-om 7861 df-2nd 7985 df-frecs 8276 df-wrecs 8307 df-recs 8356 df-rdg 8395 df-er 8692 df-en 8942 df-dom 8943 df-sdom 8944 df-pnf 11251 df-mnf 11252 df-xr 11253 df-ltxr 11254 df-le 11255 df-sub 11449 df-neg 11450 df-nn 12240 df-2 12309 df-sets 17230 df-slot 17248 df-ndx 17260 df-base 17276 df-plusg 17329 df-0g 17500 df-mgm 18704 df-sgrp 18783 df-mnd 18799 df-grp 19009 df-minusg 19010 df-cmn 19858 df-abl 19859 df-mgp 20223 df-rng 20237 df-ur 20270 df-ring 20323 df-lmod 20994 |
| This theorem is used by: (None) |
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