Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision | Next revision Both sides next revision | ||
|
sav07_quiz_answers [2007/03/18 16:27] vkuncak |
sav07_quiz_answers [2007/03/18 16:27] vkuncak |
||
|---|---|---|---|
| Line 3: | Line 3: | ||
| "If (f(x))^2 = 4, then f(x)=2" | "If (f(x))^2 = 4, then f(x)=2" | ||
| - | * **Answer**: Not valid. Let x be an arbitrary element. Take as t interpretation a function f and such that f( | + | * **Answer**: Not valid. Let x be an arbitrary element. Take as t interpretation a function f and such that f(x)=-2. |
| * Is the following statement valid (for arbitrary properties P and Q), and why: | * Is the following statement valid (for arbitrary properties P and Q), and why: | ||