Fix infoset realisation probability for absent-minded information sets#835

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d-kad:infoset-realisation

Commits on Jun 17, 2026

Track absent-minded reentry nodes in game tree via m_absentMindedReentries and IsAbsentMindedReentry
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Fix infoset realisation probability for the absent-minded case using cached m_infosetProbs in ComputeRealizationProbs
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Add tests for absent-minded infoset probability
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Check IsAbsentMindedReentry for nodes only if the node is a member of an absent-minded information set
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Expose absent-minded reentries as (infoset, node) pairs via GetAbsentMindedReentries
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Implement sum-then-subtract realisation probability for absent-minded infosets
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Detect absent-minded reentries in BuildOwnPriorActions, not BuildUnreachableNodes
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Add absent-minded reach-probability fixture that would fail the previous pure-strategy reentry detection
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fix typo in labels
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Deprecate IsAbsentMindedReentry
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Test chance infoset realisation probability in a nature-rooted game
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Populate realisation probabilities for chance information sets
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Correct beliefs for members of absent-minded infosets; add documentation docstrings
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Add pygambit tests covering node beliefs for absent-minded infosets
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Add Halpern, Pass (2021) to the bibliography
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