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instance method

Set#proper_superset?

(self) -> bool
proper_superset?(other_set) → true or false

Returns whether self is a proper superset of the given other_set:

Example
set = Set[*'a'..'f']
set.proper_superset?(set)            # => false
set.proper_superset?(Set[*'b'..'e']) # => true

Related: Methods for Querying.

See also #proper_subset? #reject! #merge #replace also in 4.0 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0