Negative conclusion from affirmative premises

<h2 id="see-also">See also</h2>
<ul><li><a href="/facts/Affirmative_conclusion_from_a_negative_premise/rxVnluXn">Affirmative conclusion from a negative premise</a>, in which a syllogism is invalid because an affirmative conclusion is reached from a negative premise</li>
<li><a href="/facts/Fallacy_of_exclusive_premises/JE48R0T3">Fallacy of exclusive premises</a>, in which a syllogism is invalid because both premises are negative</li></ul>

<h2 id="external-links">External links</h2>
<ul><li>Gary N. Curtis. <a href="http://www.fallacyfiles.org/negfroma.html">"Negative Conclusion from Affirmative Premisses"</a>. <i>Fallacy Files</i>. Retrieved December 20, 2010.</li></ul>

<h2 id="references">References</h2>

<ol>
<li id="fn:1"><p>Alfred Sidgwick (1901). The use of words in reasoning. A. & C. Black. pp. 297–300. <a href="https://archive.org/details/useofwordsinreas00sidgiala" target="_blank">https://archive.org/details/useofwordsinreas00sidgiala</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li>
<li id="fn:2"><p>Fred Richman (July 26, 2003). "Equivalence of syllogisms" (PDF). Florida Atlantic University. p. 16. Archived from the original (PDF) on June 19, 2010. <a href="https://web.archive.org/web/20100619151753/http://math.fau.edu/Richman/Docs/syllog-4.pdf" target="_blank">https://web.archive.org/web/20100619151753/http://math.fau.edu/Richman/Docs/syllog-4.pdf</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li>
</ol>

Negative conclusion from affirmative premises open-in-new

Negative conclusion from affirmative premises