Sentence examples for this necessary truth from inspiring English sources

I name the actual world 'α'; then it is a necessary truth that (say) there was a US civil war in α, but your only way of knowing this necessary truth is a posteriori.

Buridan could have said that the possible truth of 'This is X' means that it is true in a possible state of affairs in which the possible being referred to by 'this ' occurs and that the necessary truth of 'This is X' means that it is true in all possible states of affairs in which 'this' occurs.

As Wittgenstein had already shown, the necessary truth of tautologies simply amounts to their being true under all conceivable circumstances.

Note that the necessary truth of a = b does not imply the necessary existence of objects a or b.

The core of the argument is the necessary truth that what is always in motion must be immortal.

Yet there are times when civility bends toward complaisance, when impertinence is part of the necessary truth.

A version of this argument is clearly foreshadowed in Bernard Williams' (1971: 27) now classic discussion of equality in which he concluded that, "leaving aside preventive medicine the proper ground of distribution of medical care is health; this is a necessary truth".

Since 'Mark Twain' and Samuel Clemenss' pick out the same entity in every possible world where they pick out anything, this identity statement is a necessary truth.

On the other hand, this conjunction cannot be explained by a necessary truth because a necessary truth can only imply other necessary truths.

For example, one cannot know a priori that gold does not have the atomic number 79, but it is a necessary truth that gold has this atomic number.

Latent in this distinction for Kant is the antithesis between necessary truth and contingent truth.