question archive For each of the following: Is it a tautology, a contradiction, or a contingent sentence? 1
For each of the following: Is it a tautology, a contradiction, or a contingent sentence? 1
Subject:MathPrice: Bought3
For each of the following: Is it a tautology, a contradiction, or a contingent sentence?
1. Caesar crossed the Rubicon.
2. Someone once crossed the Rubicon.
3. No one has ever crossed the Rubicon. 22 forallx (UBC edition)
4. If Caesar crossed the Rubicon, then someone has.
5. Even though Caesar crossed the Rubicon, no one has ever crossed the Rubicon.
6. If anyone has ever crossed the Rubicon, it was Caesar.
