circulus in probando

Latin

Pronunciation

• (Classical Latin) IPA^(key): /ˈkir.ku.lus in proˈban.doː/, [ˈkɪrkʊɫ̪ʊs̠ ɪn prɔˈbän̪d̪oː]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈt͡ʃir.ku.lus in proˈban.do/, [ˈt͡ʃirkulus in proˈbän̪d̪o]

Phrase

circulus in probandō

1. proving in circles, using a conclusion as the premise in an argument, thus going around the proof (See: Circulus vitiosus)