thus or3c . <*0,0,0*> = (('not' FALSE) 'or' ('not' FALSE)) 'or' TRUE by Def27
.= 1 ; :: thesis: ( or3c . <*0,0,1*> = 1 & or3c . <*0,1,0*> = 1 & or3c . <*0,1,1*> = 1 & or3c . <*1,0,0*> = 1 & or3c . <*1,0,1*> = 1 & or3c . <*1,1,0*> = 1 & or3c . <*1,1,1*> = 0 )
thus or3c . <*0,0,1*> = (('not' FALSE) 'or' ('not' FALSE)) 'or' FALSE by Def27
.= 1 ; :: thesis: ( or3c . <*0,1,0*> = 1 & or3c . <*0,1,1*> = 1 & or3c . <*1,0,0*> = 1 & or3c . <*1,0,1*> = 1 & or3c . <*1,1,0*> = 1 & or3c . <*1,1,1*> = 0 )
thus or3c . <*0,1,0*> = (('not' FALSE) 'or' ('not' TRUE)) 'or' TRUE by Def27
.= 1 ; :: thesis: ( or3c . <*0,1,1*> = 1 & or3c . <*1,0,0*> = 1 & or3c . <*1,0,1*> = 1 & or3c . <*1,1,0*> = 1 & or3c . <*1,1,1*> = 0 )
thus or3c . <*0,1,1*> = (TRUE 'or' ('not' TRUE)) 'or' ('not' TRUE) by Def27
.= 1 ; :: thesis: ( or3c . <*1,0,0*> = 1 & or3c . <*1,0,1*> = 1 & or3c . <*1,1,0*> = 1 & or3c . <*1,1,1*> = 0 )
thus or3c . <*1,0,0*> = (('not' TRUE) 'or' ('not' FALSE)) 'or' TRUE by Def27
.= 1 ; :: thesis: ( or3c . <*1,0,1*> = 1 & or3c . <*1,1,0*> = 1 & or3c . <*1,1,1*> = 0 )
thus or3c . <*1,0,1*> = (('not' TRUE) 'or' TRUE) 'or' ('not' TRUE) by Def27
.= 1 ; :: thesis: ( or3c . <*1,1,0*> = 1 & or3c . <*1,1,1*> = 0 )
thus or3c . <*1,1,0*> = (('not' TRUE) 'or' ('not' TRUE)) 'or' TRUE by Def27
.= 1 ; :: thesis: or3c . <*1,1,1*> = 0
thus or3c . <*1,1,1*> = (FALSE 'or' ('not' TRUE)) 'or' ('not' TRUE) by Def27
.= 0 ; :: thesis: verum