Adds op examples, refs #2277

Author: JJ

doc/Type/Bag.pod6

@@ -65,18 +65,19 @@ values become the associated integer weights:
     say $n.keys.map(&WHAT);  # OUTPUT: «((Str) (Str))␤»
     say $n.values.perl;      # OUTPUT: «(1, 4).Seq␤»
 
-Furthermore, you can get a C<Bag> by using bag operators (see next section) on
-objects of other types such as L<List>, which will internally call C<.Bag>
-on them before performing the operation.  Be aware of the tight precedence of
-those operators though, which may require you to use parentheses around arguments:
+Furthermore, you can get a C<Bag> by using bag operators (see next
+section) on objects of other types such as L<List>, which will
+internally call C<.Bag> on them before performing the operation.  Be
+aware of the tight precedence of those operators though, which may
+require you to use parentheses around arguments:
 
     say (1..5) (+) 4;  # OUTPUT: «bag(1, 2, 3, 4(2), 5)␤»
 
 =head1 Operators
 
-Perl 6 provides common set and bag operators, which can take C<Bag>s (or any
-other collections) as input, and return result as C<Bool>, C<Set> or C<Bag>
-values.  For example:
+Perl 6 provides common set and bag operators, which can take C<Bag>s (or
+any other collections) as input, and return result as C<Bool>, C<Set> or
+C<Bag> values.  For example:
 
 =begin code
 my ($a, $b) = bag(2, 2, 4), bag(2, 3, 3, 4);

doc/Type/Mix.pod6

@@ -62,12 +62,27 @@ values become the associated numeric weights:
 
 =head1 Operators
 
-=for comment
-TODO: Expand this section (using the corresponding section in lib/Type/Bag.pod
-as a guide) after ab5tract's set/bag/mix operator redesign.
+C<Mix>es can use all kind of set operators returning either C<Bool> or other C<Mix>es:
 
-See L<Set/Bag Operators|/language/setbagmix#Set/Bag_operators> for a complete list of set and bag operators
-with detailed explanations.
+=begin code
+my $this-mix = (sugar => ⅓, spice => ¼, all-things-nice => ¾);
+my $that-mix = ( sugar => 1, spice => 2);
+
+say $that-mix (<) $this-mix;     # OUTPUT: «True␤»
+say $that-mix (^) $this-mix;     # OUTPUT: «set(all-things-nice)␤»
+say $that-mix (+) $this-mix;     # OUTPUT: «Bag(spice(2), sugar)␤»
+=end code
+
+With their equivalent Unicode operators:
+=begin code :preamble<my ($this-mix, $that-mix);
+say $that-mix ⊂ $this-mix;     # OUTPUT: «True␤»
+say $that-mix ⊖ $this-mix;     # OUTPUT: «set(all-things-nice)␤»
+say $that-mix ⊎ $this-mix;     # OUTPUT: «Bag(spice(2), sugar)␤»
+=end code
+
+
+See L<Set/Bag Operators|/language/setbagmix#Set/Bag_operators> for a
+complete list of set and bag operators with detailed explanations.
 
 =head2 sub mix