It is shown that axiomatic extensions of intuitionistic propositional calculus defining univocally new connectives, including those proposed by Gabbay, are strongly complete with respect to valuations ...

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Each item below offers a choice, in a pull-down menu, of four connectives for expressing various logical relationships. For each numbered item, select the connective that best fits in the sentence.

The ability to express causes, reasons and justifications is essential for language use. Causality appears in all kinds of texts/discourse and it can be marked for example by causal connectives and ...