| 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 6896 | . . . 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 21053 | . . . . 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 20409 | . . . 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 7711 | . 2 ⊢ (𝜑 → ((𝑉 × { 0 }) ∘f · (𝑉 × {𝑋})) = (𝑉 × {( 0 · 𝑋)})) |
| 14 | lflsc0.t | . . . . . 6 ⊢ · = (.r‘𝐷) | |
| 15 | 8, 14, 9 | ringlz 20436 | . . . . 5 ⊢ ((𝐷 ∈ Ring ∧ 𝑋 ∈ 𝐾) → ( 0 · 𝑋) = 0 ) |
| 16 | 7, 12, 15 | syl2anc 596 | . . . 4 ⊢ (𝜑 → ( 0 · 𝑋) = 0 ) |
| 17 | 16 | sneqd 4599 | . . 3 ⊢ (𝜑 → {( 0 · 𝑋)} = { 0 }) |
| 18 | 17 | xpeq2d 5689 | . 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 1570 ∈ wcel 2145 Vcvv 3453 {csn 4587 × cxp 5657 ‘cfv 6537 (class class class)co 7416 ∘f cof 7679 Basecbs 17305 .rcmulr 17347 Scalarcsca 17349 0gc0g 17528 Ringcrg 20373 LModclmod 21045 |
| 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 2215 ax-ext 2734 ax-rep 5236 ax-sep 5255 ax-nul 5267 ax-pow 5334 ax-pr 5402 ax-un 7739 ax-cnex 11183 ax-resscn 11184 ax-1cn 11185 ax-icn 11186 ax-addcl 11187 ax-addrcl 11188 ax-mulcl 11189 ax-mulrcl 11190 ax-mulcom 11191 ax-addass 11192 ax-mulass 11193 ax-distr 11194 ax-i2m1 11195 ax-1ne0 11196 ax-1rid 11197 ax-rnegex 11198 ax-rrecex 11199 ax-cnre 11200 ax-pre-lttri 11201 ax-pre-lttrn 11202 ax-pre-ltadd 11203 ax-pre-mulgt0 11204 |
| 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 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 3367 df-reu 3368 df-rab 3415 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4283 df-if 4486 df-pw 4562 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-iun 4956 df-br 5108 df-opab 5172 df-mpt 5191 df-tr 5217 df-id 5554 df-eprel 5559 df-po 5567 df-so 5568 df-fr 5612 df-we 5614 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-pred 6303 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-riota 7373 df-ov 7419 df-oprab 7420 df-mpo 7421 df-of 7681 df-om 7866 df-2nd 7990 df-frecs 8283 df-wrecs 8314 df-recs 8363 df-rdg 8402 df-er 8699 df-en 8956 df-dom 8957 df-sdom 8958 df-pnf 11272 df-mnf 11273 df-xr 11274 df-ltxr 11275 df-le 11276 df-sub 11470 df-neg 11471 df-nn 12261 df-2 12330 df-sets 17260 df-slot 17278 df-ndx 17290 df-base 17306 df-plusg 17359 df-0g 17530 df-mgm 18734 df-sgrp 18823 df-mnd 18839 df-grp 19061 df-minusg 19062 df-cmn 19910 df-abl 19911 df-mgp 20275 df-rng 20289 df-ur 20322 df-ring 20375 df-lmod 21047 |
| This theorem is used by: (None) |
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