4 ms·
Proof by contradiction only applies to mathematical/logical theorems, which are also known as tautologies. It's useless for statements about the physical unive
by tuatoru 6y ago
Proof by contradiction only applies to mathematical/logical theorems, which are also known as tautologies.
It's useless for statements about the physical universe.
Edit: IIRC the form is
!(!A || B) && !B
which reduces as
(A || !B) && !B
(A && !B) && (!B && !B)
A && !B && !B
Given B == false
A && true && true
A