Proved or Proven uses
15721
"Is it proved that ...?" vs. "Has it been proven that ...?"
9282
Prove using natural deduction $((P \land Q) \rightarrow R) \vdash (P \rightarrow R) \lor (Q\rightarrow R)$
51863
Logical Conditional Truth Table Rationale
47222
Soundness of a rule of a proof system with respect to the truth tables?
30059
Use of each and every
87257
How to prove this sequent using natural deduction?
51922
Epsilon Delta Proof: How do I use the definitions to prove
73688
Can I use Gödel numbers to make a proof?
125263
How to crack the proof
43700
Are proofs by contradiction really logical?
103463
Mantel's Theorem proof verification
20462
Validity of conditional statement when the premise is false.
2251
Can someone give me a hint on how to prove this?
40675
Regarding Evaluated True
86986
Using What and Which
45193
prove or supply counter example about graph
75696
Is it correct to say "In this paper we will prove that..." in academic papers?