- Out on summer break, Alexander Schmorell and two friends decided to bike from Munich to Donauwörth, intending to catch a boat and float down the Danube to Austria. On paper, the 100-kilometer (60 mile) bike ride looked easy. The terrain was relatively flat, a biker’s paradise.
- 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.