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Theorem phllvec 21848
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 2762 . . 3 (Base‘𝑊) = (Base‘𝑊)
2 eqid 2762 . . 3 (Scalar‘𝑊) = (Scalar‘𝑊)
3 eqid 2762 . . 3 (·𝑖𝑊) = (·𝑖𝑊)
4 eqid 2762 . . 3 (0g𝑊) = (0g𝑊)
5 eqid 2762 . . 3 (*𝑟‘(Scalar‘𝑊)) = (*𝑟‘(Scalar‘𝑊))
6 eqid 2762 . . 3 (0g‘(Scalar‘𝑊)) = (0g‘(Scalar‘𝑊))
71, 2, 3, 4, 5, 6isphl 21847 . 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 2145  wral 3078  cmpt 5190  cfv 6537  (class class class)co 7417  Basecbs 17307  *𝑟cstv 17350  Scalarcsca 17351  ·𝑖cip 17353  0gc0g 17530  *-Ringcsr 21010   LMHom clmhm 21209  LVecclvec 21292  ringLModcrglmod 21362  PreHilcphl 21843
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-ext 2734  ax-nul 5267
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 2741  df-cleq 2754  df-clel 2837  df-ne 2958  df-ral 3079  df-rab 3415  df-v 3455  df-sbc 3743  df-dif 3905  df-un 3907  df-ss 3919  df-nul 4283  df-if 4486  df-sn 4588  df-pr 4590  df-op 4594  df-uni 4871  df-br 5108  df-opab 5172  df-mpt 5191  df-iota 6493  df-fv 6545  df-ov 7420  df-phl 21845
This theorem is used by:  phllmod  21849  phlssphl  21878  obsne0  21944  obslbs  21949  cphlvec  25409  phclm  25466  ipcau2  25468  tcphcph  25471
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