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The conclusion doesn't follow from the premises. Note that doesn't necessarily imply that the conclusion is false. It would logically follow if you had written it this way: Premise 1: ALL home cooke …

See the brief but useful section on Language and Logic on Wikipedia about this. You might also be interested in philosophical discussions of nothingness in the article from SEP. …

I can see how this is a tricky one. The problem lies with linguistics and English language usage. At first glance, it appears that (A) neither entails nor presupposes (B), because Mary could very well …

In any given context, we may or may not "need" justification for any particular belief or statement; this relates to the notion of burden of proof. While typically the burden of proof is on the person …

I think it's just used to help people understand validity and truth with regards to necessity and possibility, first by having people realize that one thing needn't be true on this world for the state …

the statement 'All ravens are black' is logically equivalent to the statement 'All non-black things are non-ravens.' This is logically valid, but it is not necessarily true. The equivalent statement …

Like the ontological argument and most arguments of this (a priori) nature, no matter how profound the logic is, the whole argument fails to have much real-world applicability. …

When you ask, "Is there a logical methodology to classify things?" the answer is a resounding yes, there are many classification systems developed throughout history that attempted to follow a common, …

Of course language is somewhat of a barrier when it comes to describing many things, certain things more than others. For example, the aesthetic beauty of a sunset or the exquisite taste of a fine win …

I suppose it depends on how you define "definition", and although that sounds somewhat goofy, I say it will all seriousness. Typically, you use a definition as a sort of representation of an idea. In …

Wikipedia: Argument from ignorance (from Latin: argumentum ad ignorantiam), also known as appeal to ignorance (in which ignorance represents "a lack of contrary evidence"), is a fallacy in informal logic …

Yes, it is valid. How strongly it refutes a particular claim will depend on usage (there are several "types" of reductio ad absurdum) and context, but strictly speaking it is simply the process of log …

Directions require a relation; they are entirely meaningless without any context. Typically however, the notions of left and right are used in relation to oneself: my right or my left. In this regard …

The question you ask refers to what is known as Occam's Razor or the law of Parsimony (esp. psychology). It is not an unwavering principle but more of a general heuristic or "rule of thumb". Various f …

If the universe is infinite, by virtue of chance it means that every possible configuration of matter must exist somewhere The answer is no, because if the universe contains every possible config …