§2. Subalternation 79
§3. Connotative Subalternation 80
§4. Conversion 82
Reciprocality (p. 84)
§5. Obversion 85
§6. Contrary Opposition 87
§7. Contradictory Opposition 87
§8. Sub-contrary Opposition 88
§9. The Square of Opposition 89
§10. Secondary modes of Immediate Inference 90
§11. Immediate Inferences from Conditionals 93


CHAPTER VIII

ORDER OF TERMS, EULER'S DIAGRAMS, LOGICAL EQUATIONS,
EXISTENTIAL IMPORT OF PROPOSITIONS

§1. Order of Terms in a proposition 95
§2. Euler's Diagrams 97
§3. Propositions considered as Equations 101
§4. Existential Import of Propositions 104


CHAPTER IX

FORMAL CONDITIONS OF MEDIATE INFERENCE

§1. Nature of Mediate Inference and Syllogism 107
§2. General Canons of the Syllogism 108