Language has various mechanisms to show relationships among and between ideas. At the level of discourse, for example, a writer communicates the relative importance of individual ideas by expressing ...

We attempt to define the classical propositional logic by use of appropriate derivability conditions called Cn-definitions. The conditions characterize basic properties of propositional connectives.

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.