Sentence examples for defining validity from inspiring English sources

The task of defining validity for modal wffs is complicated by the fact that, even if the truth values of all of the variables in a wff are given, it is not obvious how one should set about calculating the truth value of the whole wff.

But the method for defining validity can be used and the corresponding (6 -type theorem proved for more inclusive conventions (see the entry on free logic).

Machina (1976), on the other hand, suggests defining validity as preservation of the lowest degree of truth possessed by any of the argument's premises.

This means that the state descriptions hold the triple role of (i) first-order models of FC thereby defining first-order validity, (ii) worlds for MFC thereby defining truth for □A sentences of MFC, and (iii) models of MFC thereby defining validity for MFC.

Defining validity of an instrument has always required that many factors be considered.

The difficulty in finding a single agreed definition of the empathy construct has consequences for this review both in terms of structuring the review itself and in terms of defining validity; where variations exist in the definition of a construct, approaches to assessing construct, and even criterion, validity may differ markedly.

Kaplan similarly defines validity as truth at every context in every LD structure.

In the tradition of dialogical logic, it is usual to define validity using the notion of winning strategy for the Proponent.

If we define validity in terms of truth preservation under all relational evaluations then we obtain First Degree Entailment FDEE) which is a fragment of relevant logics.

These metrics define validity in its ability to capture patient-specific behaviors to a clinically acceptable level (approximately equivalent to measurement error).

If instead we define validity as Kripke does, we have to consider also the non-maximal models that contain only one world, that is incomplete truth-tables that cancel some rows.