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.
adjective. 1  Displaying or marked by a lack of consistency, especially: a. Not regular or predictable; erratic: inconsistent behavior. 2  Mathematics Not solvable for the unknowns by the same set of values. Used of two or more equations or inequalities.