In the following, let x,y, and z refer to real numbers, R. Rewrite each of the | propositions in words without the use of the symbol 3 or V. (a) There is at least one person who is happy all the time....

Extracted text: In the following, let x,y, and z refer to real numbers, R. Rewrite each of the | propositions in words without the use of the symbol 3 or V. (a) There is at least one person who is happy all the time. (b) The corresponding sides of two triangles are equal only if the triangles are congruent.