We show the admissibility for BCI of a rule form of the characteristic implicational axiom of abelian logic, this rule taking us from (α → β) → β to α. This is done in Section 8, with surrounding sections exploring the admissibility and derivability of various related rules in several extensions of BCI.
|Number of pages||18|
|Journal||Notre Dame Journal of Formal Logic|
|Publication status||Published - 2016|