1.
|
Peter
believes that David has exactly four children, that his (David's)
sister is Mary and that her only brother has only three children.
Is what Peter believes consistent? |
2.
|
Peter
believes that David has three daughters and four sons, and he (David)
has six children in all. Is what Peter believes consistent? |
3.
|
Peter
believes that Mary is a woman and that she has three hundred children.
Is what he believes consistent? |
4.
|
Peter
believes that 2+2=5. Is what he believes consistent? |
5.
|
John
says, "Mary is coming to dinner tonight." David says, "Mary
is not coming to dinner tonight." Is what they say consistent? |
6.
|
John
says, "I have four children." Mary says, "You have
only three children." Is what they say consistent? |
7.
|
Is
the following set of sentences consistent?
{Marmaduke is a man, Marmaduke is a cat} |
8.
|
Is
the following set of sentences consistent?{Socrates
is a philosopher, Socrates is a footballer} |
