This is true.
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>AND has a higher precedence than OR, just like * is higher precedence than +. So you need parens in boolean expressions just like you do in algebraic expressions.
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>A and B or C - evaluates A and B first, then ORs that result with C. If you want the OR to be evaluated first you need parens:
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>A and ( B or C )
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>>ah ha, When the line is put alltogether, it becomes one long filter and "(" become necessary. Right? I see now.
"Build a man a fire, and he's warm for a day.
Set a man on fire, and he's warm for the rest of his life."
