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・ Try (The Killing)
・ Try (The Walking Dead)
・ Try a Little Kindness
・ Try a Little Kindness (song)
・ Try a Little Love
・ Try a Little Something New
・ Try a Little Tenderness
・ Try Again
・ Truth Thomas
・ Truth to materials
・ Truth to Promises
・ Truth Today
・ Truth Unveiled by Time
・ Truth Unveiled by Time (Bernini)
・ Truth Unveiled by Time (Tiepolo)
Truth value
・ Truth vs Hype
・ Truth Will Out
・ Truth window
・ Truth Wins Out
・ Truth!
・ Truth's Triumph
・ Truth, Beauty and a Picture of You
・ Truth, Dare, Kiss or Promise
・ Truth, Justice, and the American Way
・ Truth, Love & a Little Malice
・ Truth-apt
・ Truth-bearer
・ Truth-conditional semantics
・ Truth-seeking


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Truth value : ウィキペディア英語版
Truth value

In logic and mathematics, a truth value, sometimes called a logical value, is a value indicating the relation of a proposition to truth.
== Classical logic ==

In classical logic, with its intended semantics, the truth values are true (1 or T) and untrue or false (0 or ⊥); that is, classical logic is a two-valued logic. This set of two values is also called the Boolean domain. Corresponding semantics of logical connectives are truth functions, whose values are expressed in the form of truth tables. Logical biconditional becomes the equality binary relation, and negation becomes a bijection which permutes true and false. Conjunction and disjunction are dual with respect to negation, which is expressed by De Morgan's laws:
: ¬(
: ¬(
Propositional variables become variables in the Boolean domain. Assigning values for propositional variables is referred to as valuation.


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Truth value」の詳細全文を読む



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