LOGIC (MS 339-1009)
Defense of "or" as allowing for "and." Definition of material implication. Examples from Mrs. Ladd-Franklin (in Studies in Logic). Compare with "On the Algebra of Logic: A Contribution to the Philosophy of Notation"
Boolean algebra, material, Ladd Franklin Christine, Logic (modal see Modality), Notation (see also Nomenclature; Terminology), The "Grand Logic" ("How to Reason: A Critic of Arguments'), Studies in Logic (by Members of the Johns Hopkins University)
LOGIC / GRAND LOGIC 1893