thus or3a . <*0 ,0 ,0 *> = ('not' FALSE ) 'or' FALSE by Def25
.= 1 ; :: thesis: ( or3a . <*0 ,0 ,1*> = 1 & or3a . <*0 ,1,0 *> = 1 & or3a . <*0 ,1,1*> = 1 & or3a . <*1,0 ,0 *> = 0 & or3a . <*1,0 ,1*> = 1 & or3a . <*1,1,0 *> = 1 & or3a . <*1,1,1*> = 1 )
thus or3a . <*0 ,0 ,1*> = (('not' FALSE ) 'or' FALSE ) 'or' TRUE by Def25
.= 1 ; :: thesis: ( or3a . <*0 ,1,0 *> = 1 & or3a . <*0 ,1,1*> = 1 & or3a . <*1,0 ,0 *> = 0 & or3a . <*1,0 ,1*> = 1 & or3a . <*1,1,0 *> = 1 & or3a . <*1,1,1*> = 1 )
thus or3a . <*0 ,1,0 *> = (('not' FALSE ) 'or' TRUE ) 'or' FALSE by Def25
.= 1 ; :: thesis: ( or3a . <*0 ,1,1*> = 1 & or3a . <*1,0 ,0 *> = 0 & or3a . <*1,0 ,1*> = 1 & or3a . <*1,1,0 *> = 1 & or3a . <*1,1,1*> = 1 )
thus or3a . <*0 ,1,1*> = (('not' FALSE ) 'or' TRUE ) 'or' TRUE by Def25
.= 1 ; :: thesis: ( or3a . <*1,0 ,0 *> = 0 & or3a . <*1,0 ,1*> = 1 & or3a . <*1,1,0 *> = 1 & or3a . <*1,1,1*> = 1 )
thus or3a . <*1,0 ,0 *> = ('not' TRUE ) 'or' FALSE by Def25
.= 0 ; :: thesis: ( or3a . <*1,0 ,1*> = 1 & or3a . <*1,1,0 *> = 1 & or3a . <*1,1,1*> = 1 )
thus or3a . <*1,0 ,1*> = (('not' TRUE ) 'or' FALSE ) 'or' TRUE by Def25
.= 1 ; :: thesis: ( or3a . <*1,1,0 *> = 1 & or3a . <*1,1,1*> = 1 )
thus or3a . <*1,1,0 *> = TRUE 'or' FALSE by Def25
.= 1 ; :: thesis: or3a . <*1,1,1*> = 1
thus or3a . <*1,1,1*> = (('not' TRUE ) 'or' TRUE ) 'or' TRUE by Def25
.= 1 ; :: thesis: verum