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Theorem lmodvscld 14642

Description: Closure of scalar product for a left module. (Contributed by SN, 15-Mar-2025.)

**Hypotheses**
Ref	Expression
lmodvscld.v	⊢ 𝑉 = (Base‘𝑊)
lmodvscld.f	⊢ 𝐹 = (Scalar‘𝑊)
lmodvscld.s	⊢ · = ( ·_𝑠 ‘𝑊)
lmodvscld.k	⊢ 𝐾 = (Base‘𝐹)
lmodvscld.w	⊢ (𝜑 → 𝑊 ∈ LMod)
lmodvscld.r	⊢ (𝜑 → 𝑅 ∈ 𝐾)
lmodvscld.x	⊢ (𝜑 → 𝑋 ∈ 𝑉)

**Assertion**
Ref	Expression
lmodvscld	⊢ (𝜑 → (𝑅 · 𝑋) ∈ 𝑉)

**Proof of Theorem lmodvscld**
Step	Hyp	Ref	Expression
1		lmodvscld.w	. 2 ⊢ (𝜑 → 𝑊 ∈ LMod)
2		lmodvscld.r	. 2 ⊢ (𝜑 → 𝑅 ∈ 𝐾)
3		lmodvscld.x	. 2 ⊢ (𝜑 → 𝑋 ∈ 𝑉)
4		lmodvscld.v	. . 3 ⊢ 𝑉 = (Base‘𝑊)
5		lmodvscld.f	. . 3 ⊢ 𝐹 = (Scalar‘𝑊)
6		lmodvscld.s	. . 3 ⊢ · = ( ·_𝑠 ‘𝑊)
7		lmodvscld.k	. . 3 ⊢ 𝐾 = (Base‘𝐹)
8	4, 5, 6, 7	lmodvscl 14641	. 2 ⊢ ((𝑊 ∈ LMod ∧ 𝑅 ∈ 𝐾 ∧ 𝑋 ∈ 𝑉) → (𝑅 · 𝑋) ∈ 𝑉)
9	1, 2, 3, 8	syl3anc 1278	1 ⊢ (𝜑 → (𝑅 · 𝑋) ∈ 𝑉)

Colors of variables: wff set class

This proof depends on syntax axioms: → wi 4 = wceq 1402 ∈ wcel 2209 ‘cfv 5377 (class class class)co 6085 Basecbs 13352 Scalarcsca 13434 ·_𝑠 cvsca 13435 LModclmod 14623

This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4249 ax-pow 4311 ax-pr 4346 ax-un 4578 ax-cnex 8270 ax-resscn 8271 ax-1re 8273 ax-addrcl 8276

This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-rab 2537 df-v 2823 df-sbc 3052 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-int 3971 df-br 4131 df-opab 4193 df-mpt 4194 df-id 4438 df-xp 4780 df-rel 4781 df-cnv 4782 df-co 4783 df-dm 4784 df-rn 4785 df-res 4786 df-iota 5337 df-fun 5379 df-fn 5380 df-fv 5385 df-ov 6088 df-inn 9305 df-2 9363 df-3 9364 df-4 9365 df-5 9366 df-6 9367 df-ndx 13355 df-slot 13356 df-base 13358 df-plusg 13444 df-mulr 13445 df-sca 13447 df-vsca 13448 df-lmod 14625

This theorem is used by: assa2ass2 15010 asclvald 15022 asclfnd 15023

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