Talk:Negation introduction
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Ex falso quodlibet
[edit]How does the subject of this article differ from Ex falso quodlibet? 12.239.107.66 (talk) 19:47, 16 March 2014 (UTC)
- It just talks about Modus tollens. LegionMammal978 (talk) 12:14, 22 November 2015 (UTC)