I like apples. I don't like apples. Therefore unicorns exist.
With the principles of classical logic, that statement is true.
Top | Newest First | Oldest First
DrWatson · 70-79, M
Actually, classical logic says that the following is true:
"P and not P implies Q"
But it does not follow from this that Q is true, unless you can prove that "P and not P" is true. And according to classical logic, the latter is not true.
In other words, the implication is a true statement, but that does not mean that the conclusion is a true statement. So we cannot conclude that unicorns exist.
"P and not P implies Q"
But it does not follow from this that Q is true, unless you can prove that "P and not P" is true. And according to classical logic, the latter is not true.
In other words, the implication is a true statement, but that does not mean that the conclusion is a true statement. So we cannot conclude that unicorns exist.
View 5 more replies »
Really · 80-89, M
@OliRos I'm genuinely sorry if you took my 'goring' comment seriously. It was intended in jest. (I'm not really a unicorn.) Perhaps if you were old enough you'd understand. 😄
Seriously; take a look inside your own psyche and see if you can understand (for yourself, not me) why you address me as 'old man.' What prejudices about age do you harbor, and where did they come from?
it would be possible to have a serious, civil, even friendly discussion about where we get these attitudes. 😳
Or maybe not? ....
Seriously; take a look inside your own psyche and see if you can understand (for yourself, not me) why you address me as 'old man.' What prejudices about age do you harbor, and where did they come from?
it would be possible to have a serious, civil, even friendly discussion about where we get these attitudes. 😳
Or maybe not? ....
OliRos · 22-25, F
@Really Thank you, your apology is accepted.
But do I really need to point out to you the depth of inappropriateness in such a sexually loaded comment from a, let us say, mature man to a young woman?
And just how much older would I have to be to "understand" that?
I addressed you as "old man" because that is how you present yourself. I did not address you as, or in any way imply that I was doing so, as "dirty old man", no matter how much your original question to me might have justified it.
It would appear that my prejudices about old age are matched by yours about youth.
But do I really need to point out to you the depth of inappropriateness in such a sexually loaded comment from a, let us say, mature man to a young woman?
And just how much older would I have to be to "understand" that?
I addressed you as "old man" because that is how you present yourself. I did not address you as, or in any way imply that I was doing so, as "dirty old man", no matter how much your original question to me might have justified it.
It would appear that my prejudices about old age are matched by yours about youth.
JoyfulSilence · 46-50, M
Luke73 · 22-25, M
@JoyfulSilence Actually it’s the other way around. I first assume that I like apples. Then I assume that I don’t like apples. From that can be concluded that unicorns exist.
And then it can also be concluded that they like apples (…and also that they don’t like apples)
And then it can also be concluded that they like apples (…and also that they don’t like apples)
JoyfulSilence · 46-50, M
Sidewinder · 36-40, M
Really · 80-89, M
That's THREE statements, each possibly untrue.
Luke73 · 22-25, M
@Really I‘m still waiting for the proof. I‘ve already proven the statement, so either you find a flaw in my proof or you proof it otherwise. But I can’t see why repeating the quadratic formula is relevant in anyway. Or how that even proves anything.
And maybe a tip for next time. Don’t write formulas as words, it can be ambiguous.
And maybe a tip for next time. Don’t write formulas as words, it can be ambiguous.
This comment is hidden.
Show Comment
Justmeraeagain · 56-60, F
People like unicorns that eat apples.
Apples exist.
Therefore unicorns exist.
Apples exist.
Therefore unicorns exist.
Gemma90 · F
Do they ate apples 🍎
The sky tastes like purple
Sidewinder · 36-40, M
@NativePortlander1970
However, I'm a color/sound synesthete, so to me, music registers in my mind as an array of colors.
The sky tastes like purple.
To a person with color/taste synesthesia, it would.However, I'm a color/sound synesthete, so to me, music registers in my mind as an array of colors.