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Discard models with only one designated value
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1 changed files with 5 additions and 0 deletions
5
vsp.py
5
vsp.py
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@ -63,6 +63,11 @@ def has_vsp(model: Model, interpretation: Dict[Operation, ModelFunction]) -> VSP
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"""
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"""
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impfunction = interpretation[Implication]
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impfunction = interpretation[Implication]
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# NOTE: No models with only one designated
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# value satisfies VSP
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if len(model.designated_values) == 1:
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return VSP_Result(False, model.name)
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# Compute I the set of tuples (x, y) where
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# Compute I the set of tuples (x, y) where
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# x -> y does not take a designiated value
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# x -> y does not take a designiated value
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I: Set[Tuple[ModelValue, ModelValue]] = set()
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I: Set[Tuple[ModelValue, ModelValue]] = set()
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