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24 Cards in this Set
 Front
 Back
Axiom

Statement that describes a fundamental relationship between the basic terms of geometry


Formal Proof

Known as twocolumn proof where it is organized into two columns


Informal Proof

Proof where you write a paragraph to explain why a conjecture for a given situation is true


Two Column Proof

A formal proof that contains statements and reasons organized in two columns


Truth Value

The truth or falsity of a statement


Theorem

A statement or conjecture that can be proven true by undefined terms, definitions or postulates


Statement

Any sentence that is either true or false but not both


Related Conditionals

Statements such as the converse, inverse, and contrapositive that are based on a given conditional statement


Paragraph Proof

An informal proof written in the form of a paragraph that explains why a conjecture for a given situation is true


Negation

If a statement is represented by p, then not p is the negation of the statement


Logically Equivalent

Statements that have the same truth values


Inverse

The statement formed by negating both the hypothesis and conclusion of a conditional statement


Inductive Reasoning

Reasoning that uses a number of examples to arrive at a prediction. Conclusion arrived lack with logical certainty


IfThenStatements

A compound statement in the form of "if A then B" where A and B are statements


Hypothesis

In a conditional statement that comes after the word if


Deductive Reasoning

A system of reasoning that uses facts, rules, definitions, or properties to reach logical conclusion


Deductive Arguement

A proof formed by group of algebraic steps used to solve a problem


Counterexample

An example used to show that a given statement is not always true


Converse

The statement formed by negating both the hypothesis and conclusion of a conditional statement


Contrapositive

The statement formed by negating both the hypothesis and conclusion of the converse of a conditional statement


Conjecture

An educated guess based on known information


Conclusion

In conditional statement the statement after the word then


Compound Statement

A statement formed by joining two or more statements


Biconditional

Is the conjunction of a conditional and its converse
