If you put forward a proposition, does that mean that you hold its contrary to be false?

Question

If you put forward a proposition, does that mean that you hold its contrary to be false?

Answer 1

very interesting. I wish i could understand the question better.

If you forwarded it, i don't think you hold anything. If its false, then so it will be. I think it depends on the original copy or the one who wrote it.

On the other hand, it depends on what the law says.

Thanks for asking

Answer 2

no. most definitely not. u are there to prove who's side is better. yet, ul have to listen to the cause of the opposition so that u can make a sound judgment.Ü

Answer 3

No.

"A pair of categorical propositions which (provided that we assume existential import) cannot both be true, but can both be false. In the traditional square of opposition, an A proposition and its corresponding E are contraries. Thus, for example:

All cars are green and No cars are green are contraries. "

http://www.philosophypages.com/dy/c7.htm...

It is the "contradiction" which is the "not-X" of your proposition.

That is why logic is the art of non-contradiction, and it is why the Law of Non-Contradiction is one of the unalterable laws of consciousness itself. Identity is the first law; another identity cannot contradict the first identity without one of them being wrong.

But a contrary is not a contradiction, and often proves useful in determining what is truthful or factual.

Answer 4

In short:

A proposition is not declaritive. It is a declaritive sentence or combination of declaritive sentences (i.e. this question is lame) prefixed with 'is it true that...'

If a proposition is represented by 'x' for example you would use truth tables to discover whether the combinations within it are consistent or not (e.g. is it true that x and not-x, which obviously inconsistent). They are truth-apt, but are not statements (if make a statement x, then it assumed you also state not-x).

So the answer is no.

Answer 5

not always false, however inferior to your own proposition.