DMN16 — Rule 51.c doesn't support FEEL syntax of list with squary brackets as shown on page 122

on page 122 in table 43 in row 2 and 3: "e1 in [e2, e3, ...]"
on page 109 grammar rule 51.c: expression "in" positive unary test
on page 109 grammar rule 51.c: expression "in" "(" positive unary tests ")"

The syntax with square brackets is not allowed by the grammar rules 51.c. Either table 43 or grammar definition should be changed.

Already possible

The issue was raised a long time ago. In the meantime, the grammar has changed. Currently, a positive unary test can be any feel expression, hence the second operand can be a list.