A system of formal logic ...

Mode of access: Internet.

The use of words in reasoning

pt.1. The nature of reasoning.--pt.2. Description and ambiguity.--pt.3. The leading technicalities of formal logic.--pt.4. Summaries.

A comparative discussion of variable-valued logic and grammatical inference /

Bibliography: p. 45-46.

A theory of formal deducibility.

Bibliography: p. 123-129.