We use the words “meaning”, “believing”, “intending” in such a way that they refer to certain acts, states of mind given certain circumstances; as by the expression “checkmating somebody” we refer to the act of taking his king. If on the other hand someone, say a child, playing about with chessmen, placed a few of them on a chess board and went through the motions of taking a king, we should not say the child had checkmated anyone. ‒ ‒ And here too one might think that what distinguished this
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case from real checkmating was what happened in the child's mind.