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A false statement, also known as a falsehood, falsity, misstatement or untruth, is a statement that is false or does not align with reality. This concept spans various fields, including communication, law, linguistics, and philosophy. It is considered a fundamental issue in human discourse.
In logic and semantics, the term statement is variously understood to mean either: a meaningful declarative sentence that is true or false, [citation needed] or; a proposition. Which is the assertion that is made by (i.e., the meaning of) a true or false declarative sentence. [1] [2]
For instance, two statements or more are logically incompatible if, and only if their conjunction is logically false. One statement logically implies another when it is logically incompatible with the negation of the other. A statement is logically true if, and only if its opposite is logically false. The opposite statements must contradict one ...
False authority (single authority) – using an expert of dubious credentials or using only one opinion to promote a product or idea. Related to the appeal to authority. False dilemma (false dichotomy, fallacy of bifurcation, black-or-white fallacy) – two alternative statements are given as the only possible options when, in reality, there ...
A statement is "vacuously true" if it resembles a material conditional statement , where the antecedent is known to be false. [1] [3] [2]Vacuously true statements that can be reduced (with suitable transformations) to this basic form (material conditional) include the following universally quantified statements:
A fourth included set includes statements that only have a "provable false factual connotation" – that is, implicit statements of fact. The example Volokh uses is the statement that "Joe deserves to die" which in the context of a murder could be made to be a factual statement.
At first, the illusory truth effect was believed to occur only when individuals are highly uncertain about a given statement. [1] Psychologists also assumed that "outlandish" headlines wouldn't produce this effect however, recent research shows the illusory truth effect is indeed at play with false news. [5]
The white area shows where the statement is false. Let S be a statement of the form P implies Q (P → Q). Then the converse of S is the statement Q implies P (Q → P). In general, the truth of S says nothing about the truth of its converse, [2] unless the antecedent P and the consequent Q are logically equivalent. For example, consider the ...