| 2007 | Leibniz: Guide for the Perplexed |
| 1686.07.4/14 | p.63 | 19333 | A truth is just a proposition in which the predicate is contained within the subject |
| 3.1 | p.62 | 19347 | Substance needs independence, unity, and stability (for individuation); also it is a subject, for predicates |