Logica vetus

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Lake Mead (the impounded Colorado River) at the Hoover Dam. The light-coloured band of rock above the shoreline shows the decrease in water level in the first few years of the 21st century.

6 Lakes That Are Drying Up

Scolex (head) of the tapeworm Taenia solium. The hooks of the scolex enable the tapeworm to attach to the intestinal wall.

Uninvited Guests: The 7 Worst Parasitic Worms

airplane in flight (plane, aircraft, flying)

7 Puzzling Plane Disappearances

Middle East bee locator map

Are the Middle East and the Near East the Same Thing?

Close up of praying mantis walking on stone ground against a blurred background in Japan

6 Animals That Eat Their Mates

Normandy Invasion: Omaha Beach. World War II. D-Day. Infographic. SPOTLIGHT VERSION

Facts and Figures About the Landings on Omaha Beach During the Normandy Invasion on June 6, 1944

African Americans demonstrating for voting rights in front of the White House as police and others watch, March 12, 1965. One sign reads, "We demand the right to vote everywhere." Voting Rights Act, civil rights.

Timeline of the American Civil Rights Movement

Logica vetus

logic

Also known as: Ars vetus, Old Logic

Learn about this topic in these articles:

medieval logic

In history of logic: Transmission of Greek logic to the Latin West
…were known collectively as the Logica vetus (“Old Logic”).
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