My vainity is bigger than anything else that defines me
by kohoutek February 8, 2019
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The principle that logical validity exists on a spectrum between absolute and relative, with infinite gradations and multiple dimensions. Under this law, an argument isn't simply valid or invalid—it's valid to some degree, in some logical systems, under some interpretations, for some purposes. The law of spectral validity recognizes that validity is not binary but continuous, that arguments can be more or less valid depending on the standards applied, and that the question isn't "is it valid?" but "where on the spectrum of validity does this argument fall?" This law is essential for understanding debates between different logical frameworks, where each side's arguments are valid within their own system but may appear invalid in another.
Law of Spectral Logical Validity Example: "She evaluated his argument using spectral logical validity, mapping it across multiple dimensions: validity in classical logic (high), validity in paraconsistent logic (medium), validity in fuzzy logic (depends on truth values), validity in everyday reasoning (pretty good). The spectral coordinates explained why the argument worked for some audiences and failed for others. She stopped calling it invalid and started understanding where it lived."
by Abzugal February 16, 2026
Get the Law of Spectral Logical Validity mug.The principle that under specific conditions, what appears to be a fallacy can actually be valid reasoning. The law acknowledges that context matters: an argument that commits a fallacy in one setting may be perfectly reasonable in another. Ad hominem, attacking the person, is fallacious in formal debate but valid when assessing credibility (you wouldn't trust a tobacco company's research on smoking). Appeal to authority is fallacious when the authority is irrelevant but valid when expertise is genuine. Slippery slope is fallacious when speculative but valid when causal chains are real. The law of the fallacy validity reminds us that fallacy labels are not absolute; they're tools, not weapons. What matters is not whether an argument fits a fallacy pattern but whether it's reasonable in context.
Example: "He accused her of ad hominem for mentioning the speaker's industry funding. She invoked the law of the fallacy validity: attacking the person is valid when their credibility is relevant. The funding mattered; the ad hominem was justified. He called it a fallacy; she called it context. She was right."
by Dumu The Void February 17, 2026
Get the Law of the Fallacy Validity mug.A fallacy where someone argues that because an argument is logically valid (if premises true, conclusion must follow), it must therefore be sound (premises actually true). Or more commonly, using "that's not valid" to dismiss arguments that don't fit classical logical forms. The appeal is fallacious when it confuses formal validity with truth, or when it treats validity as the only criterion for good argument. An argument can be perfectly valid and completely false if its premises are wrong.
"I made an argument based on probability and context. Response: 'That's not logically valid!' They meant it didn't fit syllogistic form. But probabilistic arguments aren't supposed to be deductively valid—they're supposed to be inductively strong. Appeal to Validity: judging all arguments by standards that only apply to some."
by Dumu The Void February 28, 2026
Get the Appeal to Validity mug.We have another work away day to deal with and all that "forced fun" to boot but don't worry, I know of something "in the Vacinity".
by JonoGibbo9090909 September 11, 2025
Get the In the Vacinity mug.The principle that logical validity operates in two modes: absolute validity (an argument that is valid in all logical systems, by any reasonable standard) and relative validity (an argument that is valid within a particular logical framework but may not hold in others). The law acknowledges that some arguments are universally valid—if all humans are mortal and Socrates is human, then Socrates is mortal holds in any logic that includes those rules. Other arguments are valid only within specific systems—a proof that works in classical logic may fail in paraconsistent logic. The law of absolute and relative validity reconciles these by recognizing that validity has both universal and context-dependent dimensions.
Law of Absolute and Relative Logical Validity Example: "They debated whether his argument was valid. He insisted it was absolutely valid (true in any logic). She pointed out it relied on the law of excluded middle, which doesn't hold in intuitionistic logic. The law of absolute and relative validity said: valid in classical logic (relative validity), not universally valid (absolute validity failed). Both were right, which is why logic is complicated."
by Abzugal February 16, 2026
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