- #1
Tom
- 2
- 0
Hello
I'm having a tough time determining wether a set of sentences is or is not consistent. I believe the criteria to be that all sentences in the set must be able to assume a True value at the same time. Here are some single sentence sets and my assessment of their consistency. (Mighty thick)...
Today is Monday. consistent, it could be Monday (its Friday right now)
That is a Ford. consistent, it could be a Ford (It is really a GM)
Okay, so far so good... now, here's where it starts to grab me wrong...
Plato is dead. Consistent, he could be dead... but that leads to...
Plato is alive. Consis... wait, Plato IS dead, has been for a while, but,
consistent? Even if false in the real world?? Could he be alive?
Help me Obi Kenobi
Thanks
I'm having a tough time determining wether a set of sentences is or is not consistent. I believe the criteria to be that all sentences in the set must be able to assume a True value at the same time. Here are some single sentence sets and my assessment of their consistency. (Mighty thick)...
Today is Monday. consistent, it could be Monday (its Friday right now)
That is a Ford. consistent, it could be a Ford (It is really a GM)
Okay, so far so good... now, here's where it starts to grab me wrong...
Plato is dead. Consistent, he could be dead... but that leads to...
Plato is alive. Consis... wait, Plato IS dead, has been for a while, but,
consistent? Even if false in the real world?? Could he be alive?
Help me Obi Kenobi
Thanks