circular reasoning

/ˌsɜːrkjʊlər ˈriːzənɪŋ/

using the conclusion as a premise in the argument

circular reasoning in a sentence

“I'm right because I'm never wrong is circular reasoning.”

Latin circularis circular from circulus circle + reasoning from Old French raisoner to discuss

Related Words

correlation vs causation

assuming that because two things correlate, one causes the other

equivocation

using a word with multiple meanings to mislead

false dichotomy

presenting only two options when more exist

false equivalence

treating two different things as if they were the same

gambler's fallacy

believing past random events affect future probabilities

genetic fallacy

judging something based on its origin rather than its current meaning