  Moreover, there are alternative ways of regimenting the grammar of FOL on which the standard truth-functional connectives are not grammatical particles, but members of a small lexical category (Quine 1986, 28–9). For example, instead of recognizing four grammatical operations that form one sentence from two sentences (one that takes \(P\) and \(Q\) and yields \(\cq{P \vee Q}\), one that takes \(P\) and \(Q\) and yields \(\cq{P \and Q}\), and so on), we could recognize a single grammatical operation that forms one sentence from two sentences and one connective. On this way of regimenting the grammar of FOL, \(\dq{\and}\) and  \(\dq{\vee}\)  would not count as grammatical particles.