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#Lean4

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The #Lean4 A* library that I'm currently extracting from my #AdventOfCode project is now nearly at the state that I can push the first commit, but there is one big question I am pondering:

For Advent of Code it only needed to compute the total Costs. It therefore does not have explicit support for outputting the path.
With the Costs being generic [Add], it should be easy enough for users to add path-computation to their Costs type.

Soo, does the library even need to output the path explicitly?