LSAT Prep
Lesson 1 - Answer ...
Argument - Answer Consists of a conclusion and a set of premises given in support of
that conclusion
Set of Facts - Answer A group of statements from which no conclusion is drawn.
Valid Conclusion - Answer A statement that must be true according to the premises
Invalid Conclusion - Answer A statement that is not necessarily true according to the
premises
Assumption - Answer An unstated premise
Structural Indicators- Conclusions - Answer Therefore, thus, hence, consequently, so, it
follow thats, or it can be concluded that
Structural Indicators- Premises - Answer Because, since, for, after all, or proven by the
fact that
Sufficient Condition - Answer What is "enough" to make something true.
Necessary Condition - Answer What is required to make something true
Structure of the Logical Reasoning - Answer Sufficient------>Necessary
Incorrect Negation - Answer Formed by negating both terms in that statement.
Incorrect Reversal - Answer Formed by reversion both terms in that statement.
Contrapositive - Answer Formed by reversing and negating both terms in that
statement.
And/Or Rule - Answer Include multiple sufficient or multiple necessary conditions
To convert into their contrapositive change every AND to OR, and change every OR to
AND.
P----> Q and R = Not Q or Not R ----.P
General Principal to a Specific Case (Circles) - Answer Apply the positive form of the
principle or applying the contrapositive of the principle
Lesson 1 - Answer ...
Argument - Answer Consists of a conclusion and a set of premises given in support of
that conclusion
Set of Facts - Answer A group of statements from which no conclusion is drawn.
Valid Conclusion - Answer A statement that must be true according to the premises
Invalid Conclusion - Answer A statement that is not necessarily true according to the
premises
Assumption - Answer An unstated premise
Structural Indicators- Conclusions - Answer Therefore, thus, hence, consequently, so, it
follow thats, or it can be concluded that
Structural Indicators- Premises - Answer Because, since, for, after all, or proven by the
fact that
Sufficient Condition - Answer What is "enough" to make something true.
Necessary Condition - Answer What is required to make something true
Structure of the Logical Reasoning - Answer Sufficient------>Necessary
Incorrect Negation - Answer Formed by negating both terms in that statement.
Incorrect Reversal - Answer Formed by reversion both terms in that statement.
Contrapositive - Answer Formed by reversing and negating both terms in that
statement.
And/Or Rule - Answer Include multiple sufficient or multiple necessary conditions
To convert into their contrapositive change every AND to OR, and change every OR to
AND.
P----> Q and R = Not Q or Not R ----.P
General Principal to a Specific Case (Circles) - Answer Apply the positive form of the
principle or applying the contrapositive of the principle
