Switching the hypothesis and conclusion of a conditional statement. For example, the converse of If it is raining then the grass is wet is If the grass is wet then it is raining.. Note: As in the example, a proposition may be true but have a false converse. See also.
In many instances, clogged arteries do not cause any symptoms until a major event, such as a heart attack or stroke, occurs. At other times, especially when the the artery is blocked by 70% or more, the buildup of arterial plaque may cause symptoms that include: 1  Chest pain. 2  Shortness of breath. 3  Heart palpitations.4  Weakness or dizziness. 5  Nausea.6  Sweating.t other times, especially when the the artery is blocked by 70% or more, the buildup of arterial plaque may cause symptoms that include: 1  Chest pain. 2  Shortness of breath. 3  Heart palpitations. 4  Weakness or dizziness.
Coronary Artery Disease Overview. Arteries that are clogged and hardened by cholesterol and fatty buildup restrict blood flow to the heart muscle. Chest pain (angina) occurs because the heart is deprived of oxygen and nutrients.When blood supply is cut off entirely, heart attack can result.oronary Artery Disease Overview. Arteries that are clogged and hardened by cholesterol and fatty buildup restrict blood flow to the heart muscle. Chest pain (angina) occurs because the heart is deprived of oxygen and nutrients.