In general, error can be reduced to the following formula: it is a 'consequence that does not come from the premisses'. The consequence is fabricated by the understanding and, through a likeness or relationship which it has with the premisses, is declared to be contained in them.
Antonio Rosmini, Certainty, Cleary & Watson, trs., Rosmini House (Durham: 1991) p. 170 (sect. 1293).
