Does anyone know what text is being referenced here. There are many times they cite like (Nos. 5,6,7) but there is no reference to this text in the bibliography, nor anywhere in the text. Google similarly has nothing other than links to the book.

If anyone could tell me what this is I would be very grateful.

  • Thank you! This was killing me
    – Rilem
    Dec 29, 2022 at 10:35
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    @MauroALLEGRANZA Please answer in...well...answers, not comments
    – Philip Klöcking
    Dec 29, 2022 at 11:03

2 Answers 2


The numbering is given within the contents on the left and each section is numbered accordingly:

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Definitely, the reader should have been explicitly informed about this arrangement.

Make sure that you use the corrected second edition; the first edition contains clear mistakes.


It seems that they are the internal references to the chapters that organize Leibniz's material.

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