- Report on Designation: Securities Building (seattle.gov)
The Securities Building is directly associated with the initial period of downtown commercial expansion that occurred between 1902 and 1920 as a result of local economic prosperity after the Klondike Gold Rush and in tandem with explosive population growth and suburban neighborhood development.
- Logic (Wikipedia)
Logic is the study of correct reasoning. It includes both formal and informal logic. Formal logic is the science of deductively valid inferences or logical truths. It studies how conclusions follow from premises due to the structure of arguments alone, independent of their topic and content. Informal logic is associated with informal fallacies, critical thinking, and argumentation theory. It examines arguments expressed in natural language while formal logic uses formal language. When used as a countable noun, the term “a logic” refers to a logical formal system that articulates a proof system. Logic plays a central role in many fields, such as philosophy, mathematics, computer science, and linguistics.