two-valuedadj.

Etymology: Previous versions of the OED give the stress as: two-ˈvalued.

Chiefly Logic.

Able to take one or other of only two values; characterized by the usual two truth-values, i.e. truth and falsity.

ΘΚΠ

the mind > mental capacity > philosophy > logic > logical truth > [adjective] > characterized by truth values

many-valued1893

multiform1893

two-valued1918

three-valued1932

pluri-valued1937

1918 C. I. Lewis Surv. Symbolic Logic iv. 222 The first procedure..interprets the elements of this system as propositions, and adds to it a postulate which holds for propositions but not for logical classes. The result is what has been called the ‘Two-valued Algebra’.

1933 Mind 42 269 I attempt to show that there are fourteen different meanings of implication in a two-valued logic.

1946 Nature 14 Sept. 357/1 Ordinary symbolic logic..represents two-valued logic.

1965 N. Chomsky Aspects Theory Syntax 232 We can regard..number [in German grammar] as a two-valued dimension.

1970 O. Dopping Computers & Data Processing i. 26 All logical connections between two-valued variables can be expressed by means of the three functions not, and, and or.

This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2019).

单词	two-valued
释义	two-valuedadj. Etymology: Previous versions of the OED give the stress as: two-ˈvalued. Chiefly Logic. Able to take one or other of only two values; characterized by the usual two truth-values, i.e. truth and falsity. ΘΚΠ the mind > mental capacity > philosophy > logic > logical truth > [adjective] > characterized by truth values many-valued1893 multiform1893 two-valued1918 three-valued1932 pluri-valued1937 1918 C. I. Lewis Surv. Symbolic Logic iv. 222 The first procedure..interprets the elements of this system as propositions, and adds to it a postulate which holds for propositions but not for logical classes. The result is what has been called the ‘Two-valued Algebra’. 1933 Mind 42 269 I attempt to show that there are fourteen different meanings of implication in a two-valued logic. 1946 Nature 14 Sept. 357/1 Ordinary symbolic logic..represents two-valued logic. 1965 N. Chomsky Aspects Theory Syntax 232 We can regard..number [in German grammar] as a two-valued dimension. 1970 O. Dopping Computers & Data Processing i. 26 All logical connections between two-valued variables can be expressed by means of the three functions not, and, and or. This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2019). < adj.1918
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