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### Binary Operations

Binary operations are selected from the main window under the Graph Operations menu.

- Graph Isomorphism Graphs can be tested for isomorphism by selecting the isomorphism option, then clicking on two graphs (as instructed by a message window). A window appears indicating whether the graphs are isomorphic or not. The actual isomorphism testing is performed by Brendan McKay's nauty system [8].
- Graph Sum
- Graph Product
- Lexicographic Product