The Collaborative International Dictionary
                    Syllogistical
                    
                        
                
                                                                    Syllogistic \Syl`lo*gis"tic\, Syllogistical \Syl`lo*gis"tic*al\, a. [L. syllogisticus, Gr. ?: cf. F. syllogistique.] Of or pertaining to a syllogism; consisting of a syllogism, or of the form of reasoning by syllogisms; as, syllogistic arguments or reasoning.
Wiktionary
                    syllogistical
                    
                        
                
                                                                    a. syllogistic
Usage examples of "syllogistical".
The round bores of the pipes are not seen on the surface, the pipes in essence being means of linking points by the shortest or most syllogistical way.