The causes of income stagnation are varied and lack the political simplicity of calls to bring down the deficit or avert another Wall Street meltdown.

If one proposition is the negation of another, it follows trivially from the definition that the two propositions are contradictories. The converse does not hold. Two propositions can be contradictories without either being the negation of the other. For example: 3) John is more than six feet tall and 4) John is either exactly six feet tall or else less than six feet tall are contradictories, but neither is the negation of the other. Negation is one way, but not the only way, of forming a contradictory.

The 48-year-old [Terrell Owens] not only blew them out of the water, but also clocked an incredible sub-4.40 time in the 40-yard dash. Even among world-class athletes, some people are just built different.

In North Carolina, as throughout the Southern Region, all timber management prescriptions are prepared by a certified compartment prescriptionist, a forester, who has completed formal training and has demonstrated proficiency in on-the-job application of standard silvicultural practices.