Theorem slmdcmn 33165

Description: A semimodule is a commutative monoid. (Contributed by Thierry Arnoux, 1-Apr-2018.)

Assertion

Ref	Expression
slmdcmn	⊢ (𝑊 ∈ SLMod → 𝑊 ∈ CMnd)

Proof of Theorem slmdcmn

Dummy variables 𝑥 𝑤 𝑦 𝑧 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		eqid 2730	. . 3 ⊢ (Base‘𝑊) = (Base‘𝑊)
2		eqid 2730	. . 3 ⊢ (+g‘𝑊) = (+g‘𝑊)
3		eqid 2730	. . 3 ⊢ ( ·𝑠 ‘𝑊) = ( ·𝑠 ‘𝑊)
4		eqid 2730	. . 3 ⊢ (0g‘𝑊) = (0g‘𝑊)
5		eqid 2730	. . 3 ⊢ (Scalar‘𝑊) = (Scalar‘𝑊)
6		eqid 2730	. . 3 ⊢ (Base‘(Scalar‘𝑊)) = (Base‘(Scalar‘𝑊))
7		eqid 2730	. . 3 ⊢ (+g‘(Scalar‘𝑊)) = (+g‘(Scalar‘𝑊))
8		eqid 2730	. . 3 ⊢ (.r‘(Scalar‘𝑊)) = (.r‘(Scalar‘𝑊))
9		eqid 2730	. . 3 ⊢ (1r‘(Scalar‘𝑊)) = (1r‘(Scalar‘𝑊))
10		eqid 2730	. . 3 ⊢ (0g‘(Scalar‘𝑊)) = (0g‘(Scalar‘𝑊))
11	1, 2, 3, 4, 5, 6, 7, 8, 9, 10	isslmd 33162	. 2 ⊢ (𝑊 ∈ SLMod ↔ (𝑊 ∈ CMnd ∧ (Scalar‘𝑊) ∈ SRing ∧ ∀𝑤 ∈ (Base‘(Scalar‘𝑊))∀𝑧 ∈ (Base‘(Scalar‘𝑊))∀𝑥 ∈ (Base‘𝑊)∀𝑦 ∈ (Base‘𝑊)(((𝑧( ·𝑠 ‘𝑊)𝑦) ∈ (Base‘𝑊) ∧ (𝑧( ·𝑠 ‘𝑊)(𝑦(+g‘𝑊)𝑥)) = ((𝑧( ·𝑠 ‘𝑊)𝑦)(+g‘𝑊)(𝑧( ·𝑠 ‘𝑊)𝑥)) ∧ ((𝑤(+g‘(Scalar‘𝑊))𝑧)( ·𝑠 ‘𝑊)𝑦) = ((𝑤( ·𝑠 ‘𝑊)𝑦)(+g‘𝑊)(𝑧( ·𝑠 ‘𝑊)𝑦))) ∧ (((𝑤(.r‘(Scalar‘𝑊))𝑧)( ·𝑠 ‘𝑊)𝑦) = (𝑤( ·𝑠 ‘𝑊)(𝑧( ·𝑠 ‘𝑊)𝑦)) ∧ ((1r‘(Scalar‘𝑊))( ·𝑠 ‘𝑊)𝑦) = 𝑦 ∧ ((0g‘(Scalar‘𝑊))( ·𝑠 ‘𝑊)𝑦) = (0g‘𝑊)))))
12	11	simp1bi 1145	1 ⊢ (𝑊 ∈ SLMod → 𝑊 ∈ CMnd)

Syntax hints:   → wi 4   ∧ wa 395   ∧ w3a 1086   = wceq 1540   ∈ wcel 2109  ∀wral 3045  ‘cfv 6514  (class class class)co 7390  Basecbs 17186  +_gcplusg 17227  ._rcmulr 17228  Scalarcsca 17230   ·_𝑠 cvsca 17231  0_gc0g 17409  CMndccmn 19717  1_rcur 20097  SRingcsrg 20102  SLModcslmd 33160

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2008  ax-8 2111  ax-9 2119  ax-ext 2702  ax-nul 5264

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-sb 2066  df-clab 2709  df-cleq 2722  df-clel 2804  df-ne 2927  df-ral 3046  df-rab 3409  df-v 3452  df-sbc 3757  df-dif 3920  df-un 3922  df-ss 3934  df-nul 4300  df-if 4492  df-sn 4593  df-pr 4595  df-op 4599  df-uni 4875  df-br 5111  df-iota 6467  df-fv 6522  df-ov 7393  df-slmd 33161

This theorem is referenced by:  slmdmnd  33166  gsumvsca1  33186  gsumvsca2  33187