At least three thousand years.
no
true
true
false
True or False. Logic and proof in math have been in existence sine the time of the ancient Greeks. true
No, logic and formal proof have been integral parts of mathematics for thousands of years. The ancient Greeks, such as Euclid and Pythagoras, were known for their use of logical reasoning and formal proofs. However, the development of formal logic as a field of study did occur more recently in the 19th and 20th centuries.
Axioms and logic (and previously proved theorems).
There aren't. vampires are fictional characters. no proof has EVER been found for their existence (no real proof anyway)
An axiom is a statement that is accepted as true without needing proof. It serves as a basic assumption in a system of logic or mathematics and is used to derive other statements.
Mermaids have never been classified as extinct because there is no proof of them. But talk of mer-folk has been around for a long time.
A page proof is a trial page or proof which has been made up into pages.
A theorem is a statement that has been proven to be true using logic and mathematical reasoning. If a theorem is disproved, it means that there is a mistake in the proof or the assumptions made. This requires revisiting the reasoning and identifying where the error occurred.