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

    :   `'''[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 (non-zero 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 all elements in `$listOfNumbers` are greater than 10. (See [Faking tcl::mathop::&& and ||].)


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