Posterior Analytics is the fourth of Aristotle's six texts on logic which are collectively known as the Organon ("Instrument"). Posterior Analytics deals with demonstration, definition, and scientific knowledge. Demonstration is distinguished as a syllogism productive of scientific knowledge, while Definition is marked as the statement of a thing's nature, a statement of the meaning of the name, or of an equivalent nominal formula.
Isabella Matilda Davis Brittingham was a significant early American Bahá’í and was posthumously designated by Shoghi Effendi as one of the 19 Disciples of ‘Abdu’l-Bahá and Heralds of the Covenant. She was born in 1852, the daughter of Benjamin Davis, who was a grandson of John Morton, a signer of the Declaration of Independence. Her sister-in-law heard about the Bahá’í Faith in 1897 and in 1898 Isabella herself became a part of the nascent American Bahá’í community. In September 1901, Isabella went on pilgrimage to the Holy Land, where she met ‘Abdu’l-Bahá, the leader of the Bahá’í Faith and son of the Founder, Bahá’u'lláh. She used the knowledge she gained there to write “The Revelati...