let v be Vector of V; :: according to BILINEAR:def 11 :: thesis: FunctionalFAF ((NulForm (V,W)),v) is additive

FunctionalFAF ((NulForm (V,W)),v) = 0Functional W by Th10;

hence FunctionalFAF ((NulForm (V,W)),v) is additive ; :: thesis: verum

FunctionalFAF ((NulForm (V,W)),v) = 0Functional W by Th10;

hence FunctionalFAF ((NulForm (V,W)),v) is additive ; :: thesis: verum