# modal

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## modal

(mōd′l) [L. modus, mode]
1. Pert. to, or characteristic of, a mode.
2. In statistics, pert. to the most frequent, common, or typical measure of the variables being investigated.
References in periodicals archive ?
2] are either both undotted non-modal terms or both undotted modal terms, then [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] is an undotted formula;
A non-modal term is either an undotted non-modal term or the result of dotting a non-modal variable; a modal term is an undotted modal term; a formula is the result of dotting any free or externally bounded occurrences of non-modal variables in an undotted formula.
D is a set of individuals in the range of the non-modal variables, each of which is either of the form <x, "actual"> or of the form <x, "nonactual">.
We can distinguish between a fully non-modal conception of the actual world and a partially modal conception thereof.
For the fully non-modal theorist, the truth conditions for counterfactuals must be elucidated in such a way that they involve conditions on causal relations, whose nature is not dependent upon counterfactuals.
It would take us too far from our principal topic of metaphysical modality to try to decide between the fully non-modal and the partially modal conceptions (even if I were capable of doing so).
Since Lewis is a modal reductionist according to whom the possible worlds are non-modal objects, he can be characterised, more strictly, as an ontological anti-realist.
For non-modal theories, at least, there is a straightforward relationship between the interdefinability of theories and the equivalence of structures:
In the non-modal cases, for example, if T is definitionally equivalent to T'and if the translation functions [f.
Futhermore, if we use the standard modal axiom "[unkeyable]p[unkeyable]p" we can derive the non-modal fact that 2 + 2 = 4.
By using the axiom "[unkeyable]p[unkeyable]p" we can derive the non-modal proposition that worlds exist.
Unlike the realist, then, the fictionalist has not "analyse(d) all modal locutions in non-modal terms .

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