[expr] logical "or" operator, counterpart to `[&&]`. Returns falsity if both arguments are boolean false, and truth otherwise. Note that this operator ''short-circuits'', and does not evaluate its second argument if the first is true. See `[|]` for bitwise "or".

    :   '''[expr]''' { ''[[a b c]]'' '''`||`''' ''[[d e f]]'' }

Note that this operator does not have a command equivalent in [tcl::mathop]; use the [if] command instead.

[PL]: While there is no `[tcl::mathop]` equivalent,  `tcl::mathop::+` ''will'' give the desired result ''provided'' all arguments have been reduced to the "most basic" boolean values (1 or 0), like for instance when evaluated with any kind of boolean operator.  For example, the following code

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::tcl::mathop::+ {*}[lmap elem $listOfNumbers { expr {$elem > 10} }]
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will tell you if any number element in `$listOfNumbers` is greater than 10.

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