Remember:

  • some useful code for writing inequalities: >= <= <>

  • and expressions return true when both subexpressions return true

  • or expressions return true when at least one subexpression returns true ==

Expression Circles of Evaluation Code

13 is less than or equal to 9,
or 2 is not equal to -3

(or (<= 13 9) (<> 2 -3))

(or (<= 13 9) (<> 2 -3))

What will this evaluate to? Why? True. The 2nd expression is true; or expressions return true if at least one subexpression is true.

3 is greater than or equal to 5,
and 5 is less than 8

What will this evaluate to? Why?

6 is less than or equal to 6,
or 12 is greater than -7

What will this evaluate to? Why?

3 is not equal to 2,
and 3 + 5 is equal to 8

What will this evaluate to?

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