- …to a proposition expressing a logical truth—e.g., to a proposition such as “If p and q, then p.” The proposition “All husbands are married,” for example, is logically equivalent to the proposition “If something is married and it is male, then it is married.”了解详细信息:…to a proposition expressing a logical truth—e.g., to a proposition such as “If p and q, then p.” The proposition “All husbands are married,” for example, is logically equivalent to the proposition “If something is married and it is male, then it is married.”www.britannica.com/topic/logical-truthOn standard views, logic has as one of its goals to characterize (and give us practical means to tell apart) a peculiar set of truths, the logical truths, of which the following English sentences are examples standardly taken as paradigmatic: (1) If death is bad only if life is good, and death is bad, then life is good.plato.stanford.edu/entries/logical-truth/A logical truth is a unique logical statement (independently of it being the result of many others): the pencil is blue. A tautology is a logical statement that involves TWO or more parts with identical logical value: the blue pencil is blue.philosophy.stackexchange.com/questions/46593/w…
(1) If death is bad only if life is good, and death is bad, then life is good. (2) If no desire is voluntary and some beliefs are desires, then some beliefs are not voluntary. (3) If Drasha is a cat and all cats are mysterious, then Drasha is mysterious.
plato.stanford.edu/archIves/spr2010/entries/logical …Here are a few more examples:
- Being unmarried is a necessary condition for being a bachelor. If you are a bachelor, then you are unmarried.
- Being a mammal is a necessary condition for being a dog. If a creature is a dog, then it is a mammal.
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Logical truth - Wikipedia
Logical truth is one of the most fundamental concepts in logic. Broadly speaking, a logical truth is a statement which is true regardless of the truth or falsity of its constituent propositions. In other words, a logical truth is a statement which is not only true, but one which is true under all interpretations of its logical … 展开
Logical constants, including logical connectives and quantifiers, can all be reduced conceptually to logical truth. For instance, two statements or more are logically incompatible if, and only if their conjunction is logically false. One statement 展开
Non-classical logic is the name given to formal systems which differ in a significant way from standard logical systems such as propositional and predicate logic. There are several ways in which this is done, including by way of extensions, deviations, and variations. … 展开
Considering different interpretations of the same statement leads to the notion of truth value. The simplest approach to truth values means that the statement may be "true" in one case, but 展开
The concept of logical truth is closely connected to the concept of a rule of inference. 展开
Logical positivism was a movement in the early 20th century that tried to reduce the reasoning processes of science to pure logic. Among other things, … 展开
• Contradiction
• False (logic)
• Logical truth table, a mathematical table used in logic
• Satisfiability
• Tautology (logic) (for symbolism of logical truth) 展开CC-BY-SA 许可证中的维基百科文本 Logical Truth - Stanford Encyclopedia of Philosophy
Notes to Logical Truth - Stanford Encyclopedia of Philosophy
7.5: Logical Analysis using Truth Tables - Humanities …
网页Truth tables, which we introduced in the last section, are primarily useful in a different way. Instead of just using them to tell us what the different logical operators mean, we can use them to do some in depth analysis of the …
Logical Reasoning: Explanation and Examples - Philosophy Terms
3.6.3: Logical Truth, Contradictions, Inconsistency, and Logical ...
2.3.3: Logical Truths and Contradictions - Humanities LibreTexts
Logical truth | Britannica
5.1 Philosophical Methods for Discovering Truth - OpenStax
Truth | Definition, Importance, Theories, & Facts
网页logical truth. truth, in metaphysics and the philosophy of language, the property of sentences, assertions, beliefs, thoughts, or propositions that are said, in ordinary discourse, to agree with the facts or to state what is the …
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