(a, b)
return all(s in b for s in a)
Return true if all elements *s* of <a> also exist in <b>.
Return true if all elements *s* of <a> also exist in <b>.
Return true if all elements * s * of <a > also exist in <b > .
def all_a_in_b(a, b):
    """Return true if all elements *s* of <a> also exist in <b>."""
    return all(s in b for s in a)
def all_a_in_b ( a , b ) : return all ( s in b for s in a )