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