Section 121: Proof of facts.

A fact is said to be-
a "Proved" when, after considering the matters before it, the court either believes it to exist or considers its existence so probable that a prudent man ought, in the circumstances of the particular case, to act upon the supposition that it does exist;
b "disproved" when, after considering the matters before it, the court either believes that it does not exist or considers its non-existence so probable that a prudent man ought in the circumstances of the particular case, to act upon the supposition that it does not exist;
c "not proved" when it is neither proved nor disproved.