I'm not sure if any of these logical operations really apply.
statement: if p then q
converse: if q then p
inverse: if not p then not q
contrapositive: if not q then not p
"The moon is between the sun and the earth" and "The earth is between the sun and the moon" have a geometrical relationship, but their logical relationship is just "if p then not q" and, of course, the contrapositive.
I was thinking in terms of inverting geometrically the moon/earth system.
Discussion (4)
Converse?
I'm not sure if any of these logical operations really apply.
- statement: if p then q
- converse: if q then p
- inverse: if not p then not q
- contrapositive: if not q then not p
"The moon is between the sun and the earth" and "The earth is between the sun and the moon" have a geometrical relationship, but their logical relationship is just "if p then not q" and, of course, the contrapositive.I was thinking in terms of inverting geometrically the moon/earth system.
Hmm. I suppose that's true.
I'm not sure that word means what you think it means.