Sentence examples for true proposition from inspiring English sources

The propositional negation of a true proposition is a false proposition.

The propositional function $x$ is self-identical maps the Moon to the true proposition that the Moon is self-identical, it maps the Sun to the true proposition that the Sun is self-identical, etc.

The thrust of (5) is the proposition that no matter what object we supply as argument, the propositional function $x$ is self-identical will map it into a true proposition.

Similarly with "true proposition" and "fact".

(1918, p. 25) Is a fact just a true proposition?

God's omniscience only requires that He knows every true proposition.

In the subsequent context, the domain expands to allow L to express some true proposition.

And, we have shown that this sentence says something true, and so expresses a true proposition.

In the right circumstances, a speaker could use (26) to assert a true proposition.

The one might assert many true propositions, while the other fails to assert any true proposition.

The whole Truth is a true proposition that is also complete: it entails all true propositions.