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Question posted on June 13, 2013; 1 response
Can paradoxes actually happen?...
Logic Show

Question posted on March 29, 2013; 1 response
Is the positing of an infinite regress a legitimate explanation in philosophy respectively are infinite regresses logically possible?...
Logic Show

Question posted on March 14, 2013; 1 response
How does one determine which side in an argument must shoulder the burden of proof?...
Logic Show

Question posted on March 7, 2013; 1 response
A very common retort when critizising somebody for a reprehensible action (like selling drugs) is that "If I don't do it, somebody else will". Does this kind of bad reasoning fall into any of the classical categories of argument...
Logic Show

Question posted on February 14, 2013; 1 response
I am confused about how a conditional statement is necessarily true, and not false or unknown, when the antecedent and consequent are both false. According to the truth table, the sentence "If Bill Clinton is Cambodian, then George Bush is...
Logic Show

Question posted on February 7, 2013; 1 response
I am learning about the principle of noncontradiction ~(p^~p). I can see that this would work if we assume that 'p' can only be true or false. Why should I make this assumption. I can see a...
Logic Show

Question posted on January 31, 2013; 2 responses
I know affirming the consequent is a fallacy, so that any argument with that pattern is invalid. But what what about analytically true premises, or causal premises? Are these not really instances of the fallacy? They seem to take its...
Logic Show

Question posted on January 10, 2013; 1 response
How, if at all, is the following paradox resolved? You hand someone a card. On one side is printed "The statement on the other side of this card is true." On the other side is printed, "The statement on the other side of...
Logic Show

Question posted on January 2, 2013; 1 response
Here's a quote from Hume: "Nothing, that is distinctly conceivable, implies a contradiction." My question is this: what is the difference between something that is logically a contradiction and something that happens to not be instantiated? For example, ghosts do...
Existence, Logic Show

Question posted on December 20, 2012; 4 responses
Is it true that anything can be concluded from a contradiction? Can you explain? It's seems like its a tautology if taken figuratively because we can indeed conclude anything if we suspend the rules of reasoning, but there is nothing...
Logic Show

Question posted on December 20, 2012; 2 responses
If the sentence "q because p" is true, must the sentence "If p then q" also be true? For example, "the streets are wet because it is raining," and the sentence "if it is raining, then the streets are wet." Are there...
Logic Show

Question posted on December 13, 2012; 2 responses
If the sentence "If p then q" is true, must the sentence "q because p" also be true? For example, "if it is raining, then the streets are wet" and the sentence "The streets are wet because it is raining." Are there...
Logic Show

Question posted on November 25, 2012; 1 response
Is there a term for the logical fallacy that other people have it worse, so you should be happy? Example: I fall down a staircase, breaking my leg. The next day I go into work, and someone (inevitably) says "Phfeh! That's...
Ethics, Logic Show

Question posted on November 25, 2012; 1 response
Can a valid syllogism be fallacious? For example God can speak Mandarin. Charity is God. ∴ Charity can speak Mandarin. David can speak Tagalog. David's bones are David. ∴ David's bones can speak Tagalog. I'm pretty sure these are valid but unsound syllogisms, and I think they both...
Logic Show

Question posted on November 17, 2012; 1 response
Why is the socratic paradox called a paradox?...
Logic, Philosophers Show

Question posted on November 8, 2012; 3 responses
Is there a way to prove that logic works? It seems that the only two methods for doing this would be to use a logical proof –which would be incorporating an assumed answer into the question– or to use some...
Logic Show

Question posted on November 1, 2012; 1 response
Another application of the ad hominem fallacy questions... Let's say there is an expert who holds a doctorate and masters in their field of specialty. They have worked in their field for 30+ years. They have received grants from government sources,...
Logic Show

Question posted on November 1, 2012; 1 response
Is there a logical explanation for why one ought to be altruistic? Someone tried to logically prove to me why one ought to be altruistic. I found a list of logical fallacies here http://en.wikipedia.org/wiki/List_of_fallacies and I'd like to know which...
Ethics, Logic Show

Question posted on September 26, 2012; 1 response
Would an omnipotent and omniscient being be bound by the laws of logic? If so, to what degree?...
Logic, Religion Show

Question posted on September 22, 2012; 1 response
If Laws of logic are true or hold in all contexts, how can there be more one law? Do the two versions of De Mogan's laws differ? If so. how? Does the law of excluded middle differ from the law...
Logic Show




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