more from Paul Horwich

Single Idea 6339

[catalogued under 5. Theory of Logic / E. Structures of Logic / 1. Logical Form]

Full Idea

The logical forms of the sentences in a language are those aspects of their meanings that determine the relations of deductive entailment holding amongst them.


An 'entailment' is a valid step in logical reasoning

Gist of Idea

Logical form is the aspects of meaning that determine logical entailments


Paul Horwich (Truth (2nd edn) [1990], Ch.6.30)

Book Reference

Horwich,Paul: 'Truth (2nd edn)' [OUP 1998], p.88

A Reaction

A helpful definition. Not all sentences, therefore, need to have a 'logical form'. Is the logical form the same as the underlying proposition. The two must converge, given that propositions lack the ambiguity that is often found in sentences.