Sentence examples for universal affirmative from inspiring English sources

Happy Birthday to the universal affirmative.

There are four forms of propositions: A (universal affirmative), E (universal negative), I (particular affirmative), and O (particular negative).

A universal affirmative and its corresponding universal negative are contraries.

The contradictory of a universal affirmative is the corresponding particular negative; that of the universal negative the corresponding particular affirmative.

Because of the formal success of his logical theory, Aristotle also considers most mathematical proofs as having the form of a universal affirmative syllogism, namely Barbara.

This new symbolism e.g., the Boolean expression of universal affirmative judgements with "y = vx"—is only "an ineffectual indication of what we knew before" (Log, p. 276).

Aristotelian universal affirmatives ('Every A is B') were to be rephrased as conditionals: 'If something is A, it is B' (S. E. M 9.8 11).

But also included are the conversion of universal affirmatives and particular negatives ("All PS" does not follow from "All SP," and "Some P not S" does not follow from "Some S not P").

But the wordings he gives are not actually contraposition; their premises are apparently meant to be universal affirmatives (Every A is B) and their conclusions seem to be of a "nonstandard" negative form: Every non-B is not A. (Such conditionals, though not their converses, are valid).

Note that if a universal proposition (affirmative or negative) is true, its contradictory is false, and so the subcontrary of that contradictory is true.

The Constitution launched the new Indian state on the basis of equal citizenship, universal adult franchise and affirmative action – revolutionary concepts in a society long structured by the hierarchies and injustices of the caste system, patriarchy, monarchy and religious conservatism (to say nothing of the preceding 200 years of colonialism and imperialism under the British).