let K be Field; for V, W being non trivial VectSp of K
for f being V11() linear-Functional of V
for g being V11() linear-Functional of W holds QForm (FormFunctional f,g) = FormFunctional (CQFunctional f),(CQFunctional g)
let V, W be non trivial VectSp of K; for f being V11() linear-Functional of V
for g being V11() linear-Functional of W holds QForm (FormFunctional f,g) = FormFunctional (CQFunctional f),(CQFunctional g)
let f be V11() linear-Functional of V; for g being V11() linear-Functional of W holds QForm (FormFunctional f,g) = FormFunctional (CQFunctional f),(CQFunctional g)
let g be V11() linear-Functional of W; QForm (FormFunctional f,g) = FormFunctional (CQFunctional f),(CQFunctional g)
A1:
CQFunctional f <> 0Functional (VectQuot V,(Ker f))
;
A2:
g <> 0Functional W
;
then A3:
LQForm (FormFunctional f,g) = FormFunctional (CQFunctional f),g
by Th55;
thus QForm (FormFunctional f,g) =
RQForm (LQForm (FormFunctional f,g))
by Th49
.=
RQForm (FormFunctional (CQFunctional f),g)
by A2, A3, Th55
.=
FormFunctional (CQFunctional f),(CQFunctional g)
by A1, Th56
; verum