- fact21% (4)15% (3)18% (7)Vote
- opinion79% (15)85% (17)82% (32)Vote
Most Helpful Guy
By definition, it's a fact if it is 100% true. That's how it works.
Besides, how does when determine this "95% chance of being true"?
In mathematics, we have words for this:
A theorem is a logically proven fact based on other facts. For instance, if X is a real number between 0 and 1, then X^2 <= X.
A conjecture is a mathematical hyopthesis or something that appears true but gas not yet been disproven as false or proven as true. One classic conjecture is the Collatz Conjecture which states this:
Let N be a positive integer that will be the first number in an arithmetic sequence.
The next number in the sequence is N/2 if N is even.
The next number in the sequence is 3N+1 if N is odd.
Keep repeating the sequence.
Eventually, the sequence will look like...,4,2,1,4,2,1,4,2,1...
Here's an example starting with 11:
11, 34, 17, 52, 13, 40, 20, 10, 5, 16, 8, 4, 2, 1, 4, 2, 1, ...
Anyway, aparently this is true. No one has found a value for N where the sequence ended, 4,2,1,4,2,1... So, we call that a conjecture, but we can't call it a fact despite it apparently being true.
But I want to so you an example where being "95% true" doesn't mean it is a fact... Earlier, I said this fact:
If X is a real number between 0 and 1, then X^2 <= X
This is not a fact, but it is true for 95% of the values for X. (So, in a sense, it is 95% true.)
If X is a real number between 0 and 20/19, then X^2 <= X.
Yet, this is a fact:
If X is a real number between 0 and 20/19, then there is a 95% probability that X^2 <= X is true.
(B T W, 20/19 = 1.052631579...)
So, to answer your original question...
Q: If something has 95% chance of being true would you say its a fact?
A: No, it is not a fact.
Most Helpful Girl
Nothing is 100% in life; opinions, facts, it does not matter. 95% is enough of a "fact" for me because I know that nothing is 100% certain.0