Theorems are statements in geometry that require proof.
A proof uses postulates and theorems to prove some statement.
Yes. That is what theorems are for. Once proven, their results do not need to be justified again (except for exams).
There are many kinds of statement that are not theorems: A statement can be an axiom, that is, something that is assumed to be true without proof. It is usually self-evident, but like Euclid's parallel postulate, need not be. A statement need not be true in all circumstances - for example, A*B = B*A (commutativity) is not necessarily true for matrix multiplication. A statement can be false. A statement can be self-contradictory for example, "This statement is false".
A theorem is a statement or proposition which is not self-evident but which can be proved starting from basic axioms using a chain of reasoned argument (and previously proved theorems).
A theorem is a statement that has been proven by other theorems or axioms.
Axioms and logic (and previously proved theorems).
Theorems are statements in geometry that require proof.
A proof uses postulates and theorems to prove some statement.
Opportunity cost applies to the statement the choice to do something is the choice not to do something else.
A theorem is an unproven statement; a proven statement is a fact. A theory is a set of theorems; a theory which has been proven can be called a law or a rule.
Yes. That is what theorems are for. Once proven, their results do not need to be justified again (except for exams).
they are global
Theorems, definitions, corollaries, and postulates
6 theorems
The statement applies to the horizontal rows or periods in the periodic table is that properties change going across each row.
The statement applies to the horizontal rows or periods in the Periodic Table is that properties change going across each row.