TODO.md

• Drop more bad diagrams in extend!_all_extensions if possible

• make extend! into a non-recursive function

• More unit testing:

  • Test all functions on the one specific example already present

• Write is_degenerate() to check if the diagram is degenerate in the given rank

Done

• Graph Isomorphism (the best approach is probably to use Nauty.jl) (Done using LightGraphs's experimental graph isomorphism check)