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Mirrors > Home > MPE Home > Th. List > Mathboxes > bj-isrvec | Structured version Visualization version GIF version |
Description: The predicate "is a real vector space". Using df-sca 16978 instead of scaid 17025 would shorten the proof by two syntactic steps, but it is preferable not to rely on the precise definition df-sca 16978. (Contributed by BJ, 6-Jan-2024.) |
Ref | Expression |
---|---|
bj-isrvec | ⊢ (𝑉 ∈ ℝ-Vec ↔ (𝑉 ∈ LMod ∧ (Scalar‘𝑉) = ℝfld)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-bj-rvec 35464 | . . 3 ⊢ ℝ-Vec = (LMod ∩ (◡Scalar “ {ℝfld})) | |
2 | 1 | elin2 4131 | . 2 ⊢ (𝑉 ∈ ℝ-Vec ↔ (𝑉 ∈ LMod ∧ 𝑉 ∈ (◡Scalar “ {ℝfld}))) |
3 | scaid 17025 | . . . . . . . 8 ⊢ Scalar = Slot (Scalar‘ndx) | |
4 | 3 | slotfn 16885 | . . . . . . 7 ⊢ Scalar Fn V |
5 | df-fn 6436 | . . . . . . 7 ⊢ (Scalar Fn V ↔ (Fun Scalar ∧ dom Scalar = V)) | |
6 | 4, 5 | mpbi 229 | . . . . . 6 ⊢ (Fun Scalar ∧ dom Scalar = V) |
7 | elex 3450 | . . . . . . . 8 ⊢ (𝑉 ∈ LMod → 𝑉 ∈ V) | |
8 | eleq2 2827 | . . . . . . . 8 ⊢ (dom Scalar = V → (𝑉 ∈ dom Scalar ↔ 𝑉 ∈ V)) | |
9 | 7, 8 | syl5ibrcom 246 | . . . . . . 7 ⊢ (𝑉 ∈ LMod → (dom Scalar = V → 𝑉 ∈ dom Scalar)) |
10 | 9 | anim2d 612 | . . . . . 6 ⊢ (𝑉 ∈ LMod → ((Fun Scalar ∧ dom Scalar = V) → (Fun Scalar ∧ 𝑉 ∈ dom Scalar))) |
11 | 6, 10 | mpi 20 | . . . . 5 ⊢ (𝑉 ∈ LMod → (Fun Scalar ∧ 𝑉 ∈ dom Scalar)) |
12 | fvimacnv 6930 | . . . . 5 ⊢ ((Fun Scalar ∧ 𝑉 ∈ dom Scalar) → ((Scalar‘𝑉) ∈ {ℝfld} ↔ 𝑉 ∈ (◡Scalar “ {ℝfld}))) | |
13 | 11, 12 | syl 17 | . . . 4 ⊢ (𝑉 ∈ LMod → ((Scalar‘𝑉) ∈ {ℝfld} ↔ 𝑉 ∈ (◡Scalar “ {ℝfld}))) |
14 | fvex 6787 | . . . . 5 ⊢ (Scalar‘𝑉) ∈ V | |
15 | 14 | elsn 4576 | . . . 4 ⊢ ((Scalar‘𝑉) ∈ {ℝfld} ↔ (Scalar‘𝑉) = ℝfld) |
16 | 13, 15 | bitr3di 286 | . . 3 ⊢ (𝑉 ∈ LMod → (𝑉 ∈ (◡Scalar “ {ℝfld}) ↔ (Scalar‘𝑉) = ℝfld)) |
17 | 16 | pm5.32i 575 | . 2 ⊢ ((𝑉 ∈ LMod ∧ 𝑉 ∈ (◡Scalar “ {ℝfld})) ↔ (𝑉 ∈ LMod ∧ (Scalar‘𝑉) = ℝfld)) |
18 | 2, 17 | bitri 274 | 1 ⊢ (𝑉 ∈ ℝ-Vec ↔ (𝑉 ∈ LMod ∧ (Scalar‘𝑉) = ℝfld)) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 205 ∧ wa 396 = wceq 1539 ∈ wcel 2106 Vcvv 3432 {csn 4561 ◡ccnv 5588 dom cdm 5589 “ cima 5592 Fun wfun 6427 Fn wfn 6428 ‘cfv 6433 ndxcnx 16894 Scalarcsca 16965 LModclmod 20123 ℝfldcrefld 20809 ℝ-Veccrrvec 35463 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-1cn 10929 ax-addcl 10931 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-ral 3069 df-rex 3070 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-ov 7278 df-om 7713 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-nn 11974 df-2 12036 df-3 12037 df-4 12038 df-5 12039 df-slot 16883 df-ndx 16895 df-sca 16978 df-bj-rvec 35464 |
This theorem is referenced by: bj-rvecmod 35466 bj-rvecrr 35468 bj-isrvecd 35469 |
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