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Hawkins - Geometry
Unit 2 Vocabulary
| Term | Definition |
|---|---|
| Conclusion | The part of a conditional following then |
| Truth Value | Whether a conditional is true or false |
| Negation | A statement that has the opposite truth value |
| Conditional | Another name for an if-then statement |
| Vertical Angle | Two angles formed by intersecting lines |
| Hypothesis | The part of a conditional following if |
| Converse | Switches the hypothesis and the conclusion of a conditional statement |
| Inverse | Negates both the hypothesis and conclusion of a conditional statement |
| Formal Proof | A proof that contains statements and reasons organized into two columns |
| Adjacent Angle | Two angles that share a common side |
| Supplementary Angles | Two angles whose measures have a sum of 180 |
| Deductive Reasoning | The process of reasoning logically from given statements to a conclusion |
| Contrapositive | Switches and negates both the hypothesis and conclusion of a conditional statement |
| Equivalent Statements | Statements with the same truth value |
| Complementary Angles | Two angles whose measures have a sum of 90 |
| Good Definition | A statement that can be written as a biconditional |
| Venn Diagram | A diagram that uses circles to illustrate conditionals |
| Inductive Reasoning | Reasoning based on patterns you observe |
| Algebraic Proof | A proof that is made up of a series of algebraic statements |
| Indirect Reasoning | A proof that begins with assuming the opposite of what you want to prove and showing there is a contradiction |
| Law of Syllogism | Allows you to state a conclusion from two true conditional statements when the conclusion of one statement is the hypothesis of the other statement |
| Law of Detachment | If the conditional is true and its hypothesis is true, then the conclusion is true. |
| Counter Example | An example or instance of the statement that makes the statement false |
| Biconditional | Combining a conditional using the words if and only if when the conditional and the converse are both true |