Thanks for the clarification.

As for

3. If the scalar from the LHS is false, ...

I think that should be

    3. If the scalar from the LHS is true, ...

How else could a true value in the scalar ever change? 

$ perl -E'$x=1; $x &&= 0; say $x'
0

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In reply to Re^3: &&= vivify keys? by Eliya
in thread &&= vivify keys? by oha

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