document.write( "Question 1133807: Which of the following statements is false?\r
\n" ); document.write( "\n" ); document.write( "A. Mathematical definitions should be written as biconditional statements.
\n" ); document.write( "B. In a conditional statement, the \"if\" clause is called the hypothesis.
\n" ); document.write( "C. In a conditional statement, the hypothesis and the conclusion can be interchanged without affecting the validity of the statement.
\n" ); document.write( "D. A statement formed by connecting two statements with the word \"and\" is called a conjunction\r
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Algebra.Com's Answer #751126 by Theo(13342)\"\" \"About 
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A is true because it's true all the time.\r
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\n" ); document.write( "\n" ); document.write( "B is true because it's true all the time.\r
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\n" ); document.write( "\n" ); document.write( "C is not true because it's true only some of the time.\r
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\n" ); document.write( "\n" ); document.write( "D is true because it's true all the time.\r
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\n" ); document.write( "\n" ); document.write( "your answer is C as far as i can tell.\r
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\n" ); document.write( "\n" ); document.write( "the hypothesis and the conclusion cannot be inter-changed and the statement always be true.\r
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\n" ); document.write( "\n" ); document.write( "they may be true some of the time but may not be true some of the time.\r
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\n" ); document.write( "\n" ); document.write( "if the original statement is true and the converse statement is true, then you have a bi-conditional statement.\r
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\n" ); document.write( "\n" ); document.write( "an example would be:\r
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\n" ); document.write( "\n" ); document.write( "if an object is a triangle then the sum of the interior angles of the object is equal to 180 degrees.\r
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\n" ); document.write( "\n" ); document.write( "the converse statement would be if the sum of the interior angles of an object is equal to 180 degrees, then the object is a triangle.\r
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\n" ); document.write( "\n" ); document.write( "if the original statement is true and the converse statement is true makes the original statement a biconditional statement and, in this case, a mathematical definition as well.\r
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\n" ); document.write( "\n" ); document.write( "however, just because the original statement is true does not always make the converse true.\r
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\n" ); document.write( "\n" ); document.write( "consider:\r
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\n" ); document.write( "\n" ); document.write( "if a girl is 6 feet tall then she is a tall girl.\r
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\n" ); document.write( "\n" ); document.write( "the converse would be if a girl is tall, then she is 6 feet tall.\r
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\n" ); document.write( "\n" ); document.write( "while the original statement is true, the converse statement is not always true.
\n" ); document.write( "the girl can be 7 feet tall, or 8 feet tall.
\n" ); document.write( "she does not have to be 6 feet tall.\r
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\n" ); document.write( "\n" ); document.write( "statement C says that the hypothesis and the conclusion can be inter-changed without affecting the validity of the statement.\r
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\n" ); document.write( "\n" ); document.write( "this is not true all of the time, therefore it must be false.\r
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