That which is apt to mislead our first thoughts into a mistake in this matter is, that the agreement or disagreement of the ideas in this case is not perceived, as it was at first, by an actual view of all the intermediate ideas whereby the agreement or disagreement of those in the proposition was at first perceived; but by other intermediate ideas, that show the agreement or disagreement of the ideas contained in the proposition whose certainty we remember. For example:
Honetan hasieran errakuntzara eraman gintzakeena honako hau da, kasu honetan ideien adostasuna edo desadostasuna lehenenengo aldian bezala proposizioko ideien adostasuna edo desadostasuna hautemateko bide izandako bitarteko ideia guztiak orduantxe ikusiz hauteman beharrean, proposizioaren barruko ideien adostasuna edo desadostasuna erakusten diguten bitarteko beste ideia batzuen bidez hautematen dela, hauei buruzko ziurtasuna gogoratu egiten dugularik.