Unify the following atomic formulas.  Indicate Fail if they cannot be unified. Variables and functions are indicated by lower case; constants are indicated by upper case.   1. P(x, y, y, z)   P(Apple, Banana, w, w) 2. P(y, x, f(y))   P(z, w, z) 3. P(x, f(x), x)   P(Apple, f(w), y)

New Perspectives on HTML5, CSS3, and JavaScript
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Chapter9: Getting Started With Javascript: Creating A Countdown Clock
Section9.3: Visual Overview: Javascript Functions And Expressions
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Unify the following atomic formulas.  Indicate Fail if they cannot be unified. Variables and functions are indicated by lower case; constants are indicated by upper case.  

1. P(x, y, y, z)   P(Apple, Banana, w, w)

2. P(y, x, f(y))   P(z, w, z)

3. P(x, f(x), x)   P(Apple, f(w), y)

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