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Theorem hvadd12 5029
Description: Hilbert vector space commutative/associative law.
Hypotheses
Ref Expression
hvass.1 A ∈ ℋ
hvass.2 B ∈ ℋ
hvass.3 C ∈ ℋ
Assertion
Ref Expression
hvadd12 (A +v (B +v C)) = (B +v (A +v C))

Proof of Theorem hvadd12
StepHypRef Expression
1 hvass.1 . . . 4 A ∈ ℋ
2 hvass.2 . . . 4 B ∈ ℋ
31, 2hvcom 5000 . . 3 (A +v B) = (B +v A)
43opreq1i 3009 . 2 ((A +v B) +v C) = ((B +v A) +v C)
5 hvass.3 . . 3 C ∈ ℋ
61, 2, 5hvass 5025 . 2 ((A +v B) +v C) = (A +v (B +v C))
72, 1, 5hvass 5025 . 2 ((B +v A) +v C) = (B +v (A +v C))
84, 6, 73eqtr3 1124 1 (A +v (B +v C)) = (B +v (A +v C))
Colors of variables: wff set class
Syntax hints:   = wceq 1091   ∈ wcel 1092  (class class class)co 3001   ℋ chil 4958   +v cva 4959
This theorem is referenced by:  hvsubadd 5038  pjthlem14 5238
This theorem was proved from axioms:  ax-1 3  ax-2 4  ax-3 5  ax-mp 6  ax-4 673  ax-5 674  ax-6 675  ax-7 676  ax-gen 677  ax-8 798  ax-9 799  ax-10 800  ax-11 801  ax-12 802  ax-13 804  ax-14 805  ax-16 922  ax-17 925  ax-ext 1074  ax-rep 1075  ax-pow 1077  ax-hvcom 4985  ax-hvass 4986
This theorem depends on definitions:  df-bi 128  df-or 197  df-an 198  df-3an 583  df-ex 679  df-sb 853  df-clab 1093  df-cleq 1097  df-clel 1099  df-v 1349  df-dif 1489  df-un 1490  df-in 1491  df-ss 1492  df-nul 1708  df-pw 1799  df-sn 1811  df-pr 1812  df-op 1815  df-uni 1920  df-br 2063  df-opab 2098  df-xp 2424  df-cnv 2426  df-dm 2428  df-rn 2429  df-res 2430  df-ima 2431  df-fv 2438  df-opr 3003
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