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Formal Logic
LSAT Rules – Either Or
On the LSAT you will often encounter the terms “either, or” in both logical reasoning and analytical reasoning (logic games) questions. What exactly does “either, or” mean? When you’re mother asks if you would like cake or pie for dessert she probably means one or the other, but not both. Well the LSAT is not [...]
Quick LSAT Tip: Unless Statements Simplified
LSAT Tip: Unless statements the easy way The word UNLESS can be a blessing or a curse on the LSAT. This quick lesson will help make it a blessing for you. Check out the bottom of this article for more LSAT articles, lessons and tips. Unless is often found in the more difficult Logical Reasoning [...]
Necessary and Sufficient Conditions
Necessary and Sufficient conditions are what make up the two sides of an IF THEN statement. You can find IF THEN statements with necessary and sufficient conditions in both the Logic Games and Logical Reasoning sections of the LSAT. Here’s another look at our IF THEN statements… IF A then B A is our sufficient [...]
What’s it take to date or marry Miley Cyrus?
See if you can figure this one out… Since Miley Cyrus would never date a boy who did not believe in marriage, and anyone who truly understands romance believes in marriage, only a boy who truly understands romance would have any chance of dating Miley Cyrus. The reasoning in the argument is flawed because the [...]
Additional Reading Materials for the LSAT
Preparing for the LSAT does not have to be all LSAT texts and courses. If you have a little more time to prepare I would recommend you try taking a course in logic or critical thinking or review a logical text book. Another great resource is the Logicola software that quizzes you on a number [...]
Formal Logic – LSAT Question
Try this formal logic or conditional reasoning question for the LSAT: If the novel were successful, it would be produced as a movie or adapted as a theatre script. However, this novel is not successful, therefore, we must conclude that it will neither become a movie nor will it be adapted as a theatre script. [...]
X Unless Y – Formal Logic for LSAT Prep
X Unless Y – Formal Logic for LSAT Prep
"If and only if" vs. "if" or "only if", what's the difference?
Formal logic including conditional or IF-Then statements appear in 3 out of 4 LSAT test sections. Both Logical Reasoning Sections and the Analytical Reasoning Section will use formal logic. This often includes conditional statements such as “IF Bob is selected THEN Suzie is also selected” or “Suzie is selected IF Bob is selected” How does [...]