In this paper "Direct Construction of Minimal Acyclic Subsequential Transducers"

2 In lemma 3, what does ¬!u(tk,a) mean? It come out without explaination.

CodePudding user response：

In the same author's earlier paper, Direct Building of Minimal Automaton for a Given List, it is specified (under Background and Notations) that

we use !μ(r,σ) to denote that μ(r,σ) is defined

I suppose it is the same in this paper.

I can only guess what ¬!μ(r,σ) might mean; I assume that ¬ is being used as a negation operator, which is what would be usual. That is, it means that μ(r,σ) is not defined.

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