Disprove Sufficiency
29806
Can this statistic be shown not to be sufficient for $\theta$?
151940
Cancellation law for direct sums
147874
Why does the existence of independent statements not prove consistency?
153984
The direct image of an ideal need not be an ideal
76863
How to show $ \sup \inf g(x,y) \leq \inf \sup g(x,y)$?
113344
How do we prove that something is unprovable?
1521
Supremum and Infimum
123166
Check the statements about irreducibility
34758
Cancellation Law for Direct Sums - What is wrong with this argument?
32950
Fake induction proofs
64075
Prove that a set of connectives is inadequate
130028
Why is a statement "vacuously true" if the hypothesis is false, or not satisfied?
2752
Is there any way to generalise this problem?
49994
Deduction of $\forall y \exists x (x=y)$
126633
Is a contradiction enough to prove a set equality to $\varnothing$?
105303
'Obvious' theorems that are actually false
87439
Need word for situation where conclusion doesn't follow from the experimental data