let V be non empty ModuleStr over F_Complex ; for W being VectSp of F_Complex
for f being additiveFAF cmplxhomogeneousFAF Form of V,W
for v being Vector of V
for w being Vector of W holds (RQ*Form f) . (v,(w + (RKer (f *')))) = f . (v,w)
let W be VectSp of F_Complex ; for f being additiveFAF cmplxhomogeneousFAF Form of V,W
for v being Vector of V
for w being Vector of W holds (RQ*Form f) . (v,(w + (RKer (f *')))) = f . (v,w)
let f be additiveFAF cmplxhomogeneousFAF Form of V,W; for v being Vector of V
for w being Vector of W holds (RQ*Form f) . (v,(w + (RKer (f *')))) = f . (v,w)
let v be Vector of V; for w being Vector of W holds (RQ*Form f) . (v,(w + (RKer (f *')))) = f . (v,w)
let w be Vector of W; (RQ*Form f) . (v,(w + (RKer (f *')))) = f . (v,w)
reconsider A = w + (RKer (f *')) as Vector of (VectQuot (W,(RKer (f *')))) by VECTSP10:23;
thus (RQ*Form f) . (v,(w + (RKer (f *')))) =
((RQForm (f *')) . (v,A)) *'
by Def8
.=
((f *') . (v,w)) *'
by BILINEAR:def 21
.=
((f . (v,w)) *') *'
by Def8
.=
f . (v,w)
; verum