Examlex
Write the following two statements in symbolic form and determine whether they are logically equivalent. Include a truth table and a few words explaining how the truth table supports your answer.
If Sam is out of Schlitz, then Sam is out of beer.
Sam is not out of beer or Sam is not out of Schlitz.
Heartwood
The dense, inner part of a tree trunk, giving it rigidity and strength; darker and older than the surrounding sapwood.
Periderm
The outer protective layer in the stems and roots of woody plants.
Transpiration
The process by which water is absorbed by plant roots, moves through plants, and evaporates primarily from leaves, playing a key role in plant water regulation and nutrient uptake.
Cotransport
A membrane transport mechanism that simultaneously moves two substances across a cell membrane in the same direction, one typically driving the movement of the other.
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