universal proposition การใช้

The Liar sentence is a universal proposition ( The Liar says "'All "'
In 1934 he formulated the principle of analytic induction, designed to identify universal propositions and causal laws.
Another difficulty for the claim that every truthbearer has a truthmaker is with negations of existential propositions ( or, equivalently, universal propositions ).
The first was thought to imply'some S is P', the second was not, and as late as 1911 in the Encyclopedia Britannica article on Logic, we find the Oxford logician T . H . Case arguing against Sigwart's and Brentano's modern analysis of the universal proposition.
In his lecture in 1941 at Yale and the subsequent paper G鰀el proposed a solution : " . . . that the negation of a universal proposition was to be understood as asserting the existence . . . of a counterexample " ( Dawson, p . 157 ))