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Global Numerical Constraints on Trees
2014
Logical Methods in Computer Science
We introduce a logical foundation to reason on tree structures with constraints on the number of node occurrences. Related formalisms are limited to express occurrence constraints on particular tree regions, as for instance the children of a given node. By contrast, the logic introduced in the present work can concisely express numerical bounds on any region, descendants or ancestors for instance. We prove that the logic is decidable in single exponential time even if the numerical constraints
doi:10.2168/lmcs-10(2:10)2014
fatcat:g6cthzoufzdebhisvdeewd3awq