The story told by the ambassador's valet is either true or too good to be true.
According to this principle, every mathematical statement is either true or false; no other possibility is allowed.
"Either p or not-p" ( p ∨ ∼p) is always true because p is either true or false.
It is assumed that every proposition is either true or false and that no proposition is both true and false.
The children around our house have a saying that everything is either true, not true, or one of Mother's delusions.
But even if what Edgar is saying is just a provocation, I'm really not sure that talking about an "anti-writer trend" is either true or helpful.
Knowledge either is memory or is not; knowledge other than memory is either true or false; and knowledge that is not true is either doubt or error.
("Every statement is either true or false, and no statement is both!") Now, as a physicist at a well-known university, he devotes his days and nights to trying to decipher the hidden rules of the universe.
Part two of the series is "On Fans and Fan Mail".____ The children around our house have a saying that everything is either true, not true, or one of Mother's delusions.
If I is an interpretation of an axiomatic theory of sets, the sentence that results from an axiom when a meaning has been assigned to "set" and "∊," as specified by I, is either true or false.
Mathematical realism, for example, implies that the Goldbach conjecture (every even counting number greater than 2 is the sum of two primes) is either true or false, even though there is no known method for deciding which.
