A similar distinction may be applied to conceptions of propositions.
A sustained study of the logic of propositions came only after Aristotle.
With the advent of these conditions, the propositions are then perceived.
To say that propositions are structured is to say something about the nature of propositions.
On propositional complexity, see the entries on singular propositions and structured propositions.)
It is plausible to say that propositions can be freely negated, conjoined and disjoined to other propositions.
The propositions in the example above begin with the word every; Aristotle calls such propositions “universal.”
It is dangerous to generalize these sorts of “Easy Arguments” to all propositions (particularly singular propositions).
Third, we need to distinguish propositions of law containing the concept of causation, from propositions about the law of causation.
Different theorists differ, not just in their views about what propositions are, but also in their views about what a theory of propositions should explain.
Propositions containing only pure concepts are called conceptual propositions; those containing intuitions are called empirical propositions.
When it comes then to a truly evident judgment, propositions which are per se nota can cause evident judgments because the truth of those propositions can in no way be doubted.
The idea is that facts make true certain basic propositions, and the truth-value of the remaining, more complex propositions is determined by the basic truths and the particular content of these propositions.
Even though this objective fact obtains, the truth conditions of propositions, including propositions about which sets of propositions are believed, are the conditions under which they cohere with a set of propositions.
What the people who say that don’t realize is that such propositions, if we can use them and want to call them “propositions”, are not at all the same as what are called “propositions” in other cases; because a proof alters the grammar of a proposition.
abstract objects | actualism | dependence, ontological | nonexistent objects | Prior, Arthur | propositions | propositions: singular | propositions: structured | reference | simplicity | space and time: being and becoming in modern physics | time | truthmakers
This assumption is needed to reason from premises about propositions failing to entail other propositions about there being mental states or being concrete entities to the possible truth of those propositions in the absence of mental states and concrete entities.
One standard view of propositions takes propositions to be sets of possible worlds; another takes propositions to have something more closely resembling a linguistic logical structure (see structured propositions for a detailed exposition of this issue).
When the method of variation is applied to a proposition, three different cases may arise: either the class of propositions obtained by substitution contains only true propositions, or it contains only false propositions, or it contains both true and false propositions.
Mackie described Anderson as the last of the Aristotelian logicians and observed some awkward consequences for his conception of logic: the problem of false propositions; the absence of a way of dealing with singular propositions; an inability to deal with multiple quantification; the difficulty in expressing relational propositions in subject-predicate and syllogistic form.
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Mackie described Anderson as the last of the Aristotelian logicians and observed some awkward consequences for his conception of logic the problem of false propositions the absence of a way of dealing with singular propositions an inability to deal with multiple quantification the difficulty in expressing relational propositions in subject-predicate and syllogistic form