epichireme

noun1

1. •
   (rhetoric) A dialectical inference; a syllogism based on probable premises (endoxa), as opposed to a philosopheme which is a demonstrative or scientific syllogism based on true premises.

   • A philosopheme is a demonstrative inference: an epichireme is a dialectical inference: a sophism is a contentious inference: an aporeme is an inference that reasons dialectically to a contradiction. — 2006