so that that which causes his assent to this proposition, that the three angles of a triangle are equal to two right ones, that which makes him take these ideas to agree, without knowings them to do so, is the wonted veracity of the speaker in other cases, or his supposed veracity in this.
Beraz, triangeluaren hiru angeluak bi angelu zuzenen baliokide direla dioen proposizioari baiezkoa emateak, ideion arteko adostasuna onartzeak-horrela den ala ez ezagutu gabe-, esaleak beste kasu batzuetan erakutsi duen edota kasu honetan konkretuki aitortzen zaion egiatasunean hartzen du oina.