Another indicator of the presence of medical waste, which may be used instead of or in addition to the red or orange color code, is the BIOHAZARD symbol. Medical waste from health care facilities must be treated in a way that destroys its potential for causing disease, prior to disposing it in a landfill.
In classical logic disjunctive syllogism (historically known as modus tollendo ponens) is a valid argument form which is a syllogism having a disjunctive statement for one of its premises.
A syllogism is a rhetorical device that begins with a major statement, known as a premise, narrows down to a minor statement, or premise, and then arrives at a conclusion using deductive reasoning. The simplest way to explain how this works is by giving examples: 1  Major premise: All men are mortal. Minor premise: Socrates is a man. 2  Major premise: Plants need to carbon dioxide to live. Minor premise: The oak tree is a plant.