不當結論拉丁話non sequitur，嘅意思係「唔會跟住(it does not follow)」即係話(A)唔會引致(B) 。例如話：「如果我減咗肥，咁就會有好多人鍾意我」[未記出處或冇根據]，但多人鍾意唔係減咗肥嘅必然結果。
