The same operation which makes “ q ” from “ p ”, makes “ r ” from “ q ”, and so on. This can only be expressed by the fact that “ p ”, “ q ”, “ r ”, etc. , are variables which give general expression to certain formal relations.
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The same operation which makes “ q ” from “ p ”, makes “ r ” from “ q ”, and so on. This can only be expressed by the fact that “ p ”, “ q ”, “ r ”, etc. , are variables which give general expression to certain formal relations.