Fallacy of affirming the conclusion question
29629
Distinguishing between valid and fallacious arguments (propositional calculus)
122707
"Accept null hypothesis" or "fail to reject the null hypothesis"?
45481
Prove or disprove validity: $(\forall x \exists y (P(x) \supset Q(y))) \supset(\exists y \forall x (P (x) \supset Q(y)))$
107967
Significance of assumption in competition inequality questions
48017
What follows if we fail to reject the null hypothesis?
111797
Without computers, how can you conjecture the (in)validity of a long convoluted argument in Predicate Logic?
155679
If union of two theories is not consistent one of them implies a sentence which the other implies opposite of it
122015
"This statement is false" - Propositional Logic
76275
Argument in "thebibliography"
20462
Validity of conditional statement when the premise is false.
68607
Could an argument with false Premises and a true Conclusion be logically valid?
35370
Why is this proposition provable and its converse not?
2077
Denoting the end of example/remark
93724
How to substantiate the claim that something is not known?
87992
A proposition is non-falsifiable. So what?
38823
Can "doubt" sometimes mean "question"?
149643
Stuck on validation of argument using rules of inference