when we have different results, can we say that logic is not universal?
134034
Is logic subjective?
23406
How do I convince someone that $1+1=2$ may not necessarily be true?
130028
Why is a statement "vacuously true" if the hypothesis is false, or not satisfied?
113640
Why is there this strange contradiction between the language of logic and that of set theory?
6396
If two limits don't exist, are we sure the limit of sum doesn't exist?
75600
Is Gödel's modified liar an illogical statement?
5293
Show that the logic $ \ \forall x \exists y \ P(x,y) \ $ is not logically equivalent to $ \ \exists x \forall y \ P(x,y) \ $
150451
Logic soundness and completeness
87439
Need word for situation where conclusion doesn't follow from the experimental data
73580
Do humans make decisions based on logic or emotions?
73231
Why in implication, if premise is false then implication is true?
65895
Irrationality proofs not by contradiction
20411
Do null and alternative hypotheses have to be exhaustive or not?
5840
divides, not divides and cardinalities
122184
De Morgan's laws in logic and set theory
29629
Distinguishing between valid and fallacious arguments (propositional calculus)
105545
Confused about language and words in logic