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Ullman V2 subgraph isomorphism#32

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mstn wants to merge 5 commits intohellas-ai:masterfrom
mstn:ullmann
Open

Ullman V2 subgraph isomorphism#32
mstn wants to merge 5 commits intohellas-ai:masterfrom
mstn:ullmann

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@mstn mstn commented Mar 29, 2026

Context

Simple implementation of Ullmann V2 for searching matches in strict open hypergraphs.

Details

We search for matches using Ullmann. We can relax the search allowing non mono for LHS interfaces (still mono on boxes and other wires). In theory, Ullmann might be less efficient in pruning the search space in this case (they say that CSP approach is better), but perhaps it is a good compromise for now since patterns are small and we still keep mono almost everywhere but LHS interface.

this PR will deprecate #22

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