Could someone show me a simple example of something being proved unprovable?
38031
What is a simple example of an unprovable statement?
65895
Irrationality proofs not by contradiction
75529
Series prove or disprove statement
95057
Possible fake proof of $1= -1$
148237
Is ¬¬(¬¬P → P) provable in intuitionistic logic?
68607
Could an argument with false Premises and a true Conclusion be logically valid?
147874
Why does the existence of independent statements not prove consistency?
31392
Examples and Counterexamples of Relations which Satisfy Certain Properties
32441
How to prove or disprove statements about sets
50178
\qed for theorems without proofs
45481
Prove or disprove validity: $(\forall x \exists y (P(x) \supset Q(y))) \supset(\exists y \forall x (P (x) \supset Q(y)))$
10255
Paradoxes without self-reference?
130722
Can you prove this property?
127733
How to prove De Morgan’s laws without using contradictions
134120
Prove statement with a counter-example: For all sets S, T and V, V ∪ (S ∩ T) = (V ∪ S) ∩ T is false
15558
Zero probability and impossibility
24480
Can there be true conclusions without assumptions?