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Theorem phllvec 21816
Description: A pre-Hilbert space is a left vector space. (Contributed by Mario Carneiro, 7-Oct-2015.)
Assertion
Ref Expression
phllvec (𝑊 ∈ PreHil → 𝑊 ∈ LVec)

Proof of Theorem phllvec
Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 eqid 2766 . . 3 (Base‘𝑊) = (Base‘𝑊)
2 eqid 2766 . . 3 (Scalar‘𝑊) = (Scalar‘𝑊)
3 eqid 2766 . . 3 (·𝑖𝑊) = (·𝑖𝑊)
4 eqid 2766 . . 3 (0g𝑊) = (0g𝑊)
5 eqid 2766 . . 3 (*𝑟‘(Scalar‘𝑊)) = (*𝑟‘(Scalar‘𝑊))
6 eqid 2766 . . 3 (0g‘(Scalar‘𝑊)) = (0g‘(Scalar‘𝑊))
71, 2, 3, 4, 5, 6isphl 21815 . 2 (𝑊 ∈ PreHil ↔ (𝑊 ∈ LVec ∧ (Scalar‘𝑊) ∈ *-Ring ∧ ∀𝑥 ∈ (Base‘𝑊)((𝑦 ∈ (Base‘𝑊) ↦ (𝑦(·𝑖𝑊)𝑥)) ∈ (𝑊 LMHom (ringLMod‘(Scalar‘𝑊))) ∧ ((𝑥(·𝑖𝑊)𝑥) = (0g‘(Scalar‘𝑊)) → 𝑥 = (0g𝑊)) ∧ ∀𝑦 ∈ (Base‘𝑊)((*𝑟‘(Scalar‘𝑊))‘(𝑥(·𝑖𝑊)𝑦)) = (𝑦(·𝑖𝑊)𝑥))))
87simp1bi 1163 1 (𝑊 ∈ PreHil → 𝑊 ∈ LVec)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wi 4  w3a 1103   = wceq 1570  wcel 2146  wral 3082  cmpt 5197  cfv 6543  (class class class)co 7423  Basecbs 17294  *𝑟cstv 17337  Scalarcsca 17338  ·𝑖cip 17340  0gc0g 17517  *-Ringcsr 20978   LMHom clmhm 21177  LVecclvec 21260  ringLModcrglmod 21330  PreHilcphl 21811
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 2148  ax-9 2156  ax-ext 2738  ax-nul 5274
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-sb 2100  df-clab 2745  df-cleq 2758  df-clel 2841  df-ne 2962  df-ral 3083  df-rab 3420  df-v 3460  df-sbc 3748  df-dif 3911  df-un 3913  df-ss 3925  df-nul 4290  df-if 4493  df-sn 4595  df-pr 4597  df-op 4601  df-uni 4878  df-br 5115  df-opab 5179  df-mpt 5198  df-iota 6499  df-fv 6551  df-ov 7426  df-phl 21813
This theorem is used by:  phllmod  21817  phlssphl  21846  obsne0  21912  obslbs  21917  cphlvec  25371  phclm  25428  ipcau2  25430  tcphcph  25433
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