1. Propositions 36
2. Simple Identities 37
3. Partial Identities 40
4. Limited Identities 42
5. Negative Propositions 43
6. Conversion of Propositions 46
7. Twofold Interpretation of Propositions 47
From The Principles of Science: A Treatise on Logic and Scientific Method by William Stanley Jevons.
1. Propositions 36
2. Simple Identities 37
3. Partial Identities 40
4. Limited Identities 42
5. Negative Propositions 43
6. Conversion of Propositions 46
7. Twofold Interpretation of Propositions 47