Headaches are one effect that can come from inhalation of isopropyl alcohol. Isopropyl alcohol, or rubbing alcohol, is often used in the home or in medical facilities to treat various conditions or to sterilize instruments and skin. However, if isopropyl alcohol is inhaled there can be serious side effects.
1a) Definition of contradiction: A contradiction exists any time a proposition P is asserted to be true in conjunction with its negation, not-P. 1b) Definition of conjunction: A conjunction is a connective that joins two propositions.
The definition of converse in math, or more specifically logical  reasoning, is the switching of the hypothesis and conclusion of a  conditional statement. An example is if â¦ it is raining then there  are clouds in the sky. The converse is if there are clouds in the  sky then it is raining.