L03_Wed_Jan_13

# L03_Wed_Jan_13 - 1/13/2010 MAE 3811 Sp. 2010 Mahoney Last...

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1/13/2010 1 MAE 3811 – Sp. 2010 Mahoney Last time we saw that the following pairs of compound statements were equivalent. The last town are known as De Morgan’s Laws We can use these laws like formulas to change one compound statement in one form to another MAE 3811 – Sp. 2010 Mahoney Let’s write the following four compound statements in symbols and see which ones have same truth values. 1) If the sky is blue, the cat is purple 2) If the sky is blue, the cat is not purple

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1/13/2010 2 MAE 3811 – Sp. 2010 Mahoney 3) If the cat is purple, the sky is blue. 4) If the cat is not purple, the sky is blue MAE 3811 – Sp. 2010 Mahoney Question: So which conditional statements are logically equivalent? It turns out that these four different kinds of conditionals have special names… I’ll write them for you now.
1/13/2010 3 MAE 3811 – Sp. 2010 Mahoney Let’s consider the compound statement: This is the 5 th logical connective called the _________________. It goes with the phrase _____________________.

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## This note was uploaded on 07/22/2011 for the course MAE 3811 taught by Professor Mahoney during the Spring '11 term at University of Florida.

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L03_Wed_Jan_13 - 1/13/2010 MAE 3811 Sp. 2010 Mahoney Last...

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