I think that
～たり～たりする generally means "do things like (among other things)", but in dictionary definitions, can the pattern ～たり～たりする mean "and", "or" or "and/or"?
XたりYたりする would it imply that both
Y occur or can
X occur without
Y occurring (or vice versa)?
In the Daijisen definition for
よく for example, it's used in the following way:
Being impressed by something which takes difficulty (or? and? and/or?) the achievement of an unthinkably delightful outcome.
How would it differ from
dictionary form verb+ことや (if "or") and
～で (if "and") etc.?