Term

Definition
an unproven statement that is based on observations 


Term

Definition
when you find a pattern in specific cases and then write a conjecture for the general case 


Term

Definition
specific case for when a conjecture is false 


Term

Definition
logical statement that has two parts, hypothesis and conclusion 


Term

Definition
to write the converse exchange the hypothesis and conclusion 


Term

Definition
to write the inverse negate both the hypothesis and conclusion 


Term

Definition
first write the converse and then negate both hypothesis and conclusion 


Term

Definition
when written in this form the "if" part contains the hypothesis and the "then" contains the conclusion 


Term

Definition
the if part of a conditional statement 


Term

Definition
the then part of a conditional statement 


Term

Definition
the opposite of the original statement 


Term

Definition
when two statements are both true or both false 


Term

Definition
when two lines intersect to form a right angle 


Term

Definition
contains the phrase "if and only if" 


Term

Definition
uses facts, defintions, accepted properties, and laws of logice to form a logical arguement 


Term
line perpendicular to a plane 

Definition
a line is a line perpendicular to a plane if and only if the line intersects the plane in a point and is perpendicular to every line in the plane that intersects it at that point 


Term

Definition
logical arguement that shows a statement is true 


Term

Definition
numbered statements and corresponding reasons that show an arguements in a logical order 


Term

Definition
is a statement that can be proven 

