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Single Idea 10900

[filed under theme 5. Theory of Logic / I. Semantics of Logic / 3. Logical Truth ]

Full Idea

In first-order languages, logically true sentences are true in all structures.

Gist of Idea

Logically true sentences are true in all structures

Source

José L. Zalabardo (Introduction to the Theory of Logic [2000], §3.5)

Book Ref

Zalabardo,José L.: 'Introduction to the Theory of Logic' [Westview 2000], p.106