Question posted on April 4, 2014; 1 response 
On what grounds are the three classic laws of thought rendered 'true'? Is there a more fundamental law which enables us to see the law of identity, the law of excluded middle and the law of noncontradiction as true? If... 
Logic 

Question posted on April 4, 2014; no responses 
In Formal Logic class we recently learned how to represent "exactly 1" without using the concept of numbers, using symbolization. Using the same method, it is possible to (tediously) represent every integer. I am wondering, is it possible... 
Logic 

Question posted on April 4, 2014; 1 response 
How important is the study of logic in philosophy, independent of any one particular philosopher or school of philosophy? Is 'logic' considered a 'neutral' subject about which 'everyone' agrees? or are there some contentious issues about what 'kind'... 
Logic, Philosophy 

Question posted on March 6, 2014; 1 response 
What is the metaphysical nature of logic itself? When we refer to a basic principle of logic (such as noncontradiction) are we referring to something that exists which we call “noncontradiction”? Or is it simply an abstraction that doesn’t exist... 
Logic 

Question posted on March 6, 2014; 1 response 
Hello All,
My question is if someone makes an argument using conditional statements is the argument necessarily deductive? Basically the person claims because I am using If . . . .then clauses then that makes my argument deductive by default.
I... 
Logic 

Question posted on September 25, 2013; 2 responses 
It has been said that if there is human freedom, then we are responsible for our actions. By this, it seems natural to suppose that "given that there is no human freedom (let's just suppose for the sake of argument)... 
Freedom, Logic 

Question posted on September 12, 2013; 1 response 
Would someone please clarify the importance of the distinction between
a) either A is true, or Not A is true
and
b) either A is true, or A is not true
I've seen answers on this site in... 
Logic 

Question posted on August 29, 2013; 1 response 
I often hear arguments that go like this but I don't know how to respond to them. "Not everyone who is bullied develops behavioral problems or not everyone who is sexually abused develops a severe mental illness such as schizophrenia."... 
Logic 

Question posted on August 15, 2013; 1 response 
I am reading Neitzsch's "Human, All Too Human", in one of his aphorisms he states that logic is optimistic. Does he mean that it would be foolishly optimistic to trust logic or in its truth? Or does he mean... 
Logic, Philosophers 

Question posted on August 15, 2013; 1 response 
For the given premises P and Not P, is P a valid derivation? Shouldn't the derivation be true for all the premises for it to be valid or is it not sound and yet valid? But aren't we determining its... 
Logic 

Question posted on August 15, 2013; 1 response 
Classical logic says that from a contradiction you can derive anything. I think that depends on how you define a contradiction. If you have two opposing truth values with respect to A, A is true and A is false what... 
Logic 

Question posted on August 8, 2013; 1 response 
Are there any philosophers who deny that the principle of explosion is a valid principle while at the same time both being not accepting of a paraconsistent logic and being accepting of the Law of Non Contradiction?... 
Logic 

Question posted on August 8, 2013; 1 response 
How do (many) philosophers respond to the logical fallacy "the enemy of my enemy must be my friend"?
It is not uncommon if I am having a conversation with someone about a public policy proposal, in which I criticize an idea... 
Logic 

Question posted on July 3, 2013; 1 response 
Is there a name for a logical fallacy where person A criticizes X, and person B fallaciously assumes that because A criticizes X he must therefore subscribe to position Y, the presumed opposition of X, although A does not, in... 
Logic 

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

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 

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

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 

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 

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 
