selection stmt minimalized

2.14: adda/cstr/selection stmt minimalized:
. can terminator of selection.stmt be (;)?
yes:
you can explain that
? ,,, ;
is an enclosure similar to
(,,,);
.. the problem with that is a very unexpected
piling up of ;; when things get nested .
. notice too that commas could be replaced with
the case key:
e ? case1: e case2: e;
.