more from Anil Gupta

Single Idea 14968

[catalogued under 3. Truth / F. Semantic Truth / 2. Semantic Truth]

Full Idea

If a classical language is expressively weakened - for example, by dispensing with negation - then it can contain its own truth predicate.

Gist of Idea

A weakened classical language can contain its own truth predicate


Anil Gupta (Truth [2001], 5.2)

Book Reference

'Blackwell Guide to Philosophical Logic', ed/tr. Goble,Lou [Blackwell 2001], p.101

A Reaction

Thus the Tarskian requirement to move to a metalanguage for truth is only a requirement of a reasonably strong language. Gupta uses this to criticise theories that dispense with the metalanguage.

Related Ideas

Idea 16295 Tarski proved that truth cannot be defined from within a given theory [Tarski, by Halbach]

Idea 14796 Independent truth (if there is any) is the ultimate result of sufficient enquiry [Peirce]