Finding the list of isomorphism classes of objects of another list
Given a finite list L of connected posets in Sage. Is there a quick way to obtain the list L2 of all isomorphism classes of posets in L?
So in the list L there might be isomorphic posets, and the goal is to obtain a list L2 where that contains exactly one poset of each isomorphism class of L.
For example the list L might contain the posets B2,B3,B3,B4, where Bn denotes the Boolean lattice. Then the list L2 would contain the posets B2,B3,B4. Of course in the list, two posets might be isomorphic even when they look very different.