more from Stephen Read

Single Idea 11011

[catalogued under 4. Formal Logic / E. Nonclassical Logics / 6. Free Logic]

Full Idea

It is normal to classify free logics into three sorts; positive free logics (some propositions with empty terms are true), negative free logics (they are false), and neuter free logics (they lack truth-value), though I find this unhelpful and superficial.

Gist of Idea

Same say there are positive, negative and neuter free logics


Stephen Read (Thinking About Logic [1995], Ch.5)

Book Reference

Read,Stephen: 'Thinking About Logic' [OUP 1995], p.133