take NulForm (V,V) ; :: thesis: ( NulForm (V,V) is alternating & NulForm (V,V) is additiveFAF & NulForm (V,V) is homogeneousFAF & NulForm (V,V) is additiveSAF & NulForm (V,V) is homogeneousSAF )
thus ( NulForm (V,V) is alternating & NulForm (V,V) is additiveFAF & NulForm (V,V) is homogeneousFAF & NulForm (V,V) is additiveSAF & NulForm (V,V) is homogeneousSAF ) ; :: thesis: verum