Respuesta :
Consider the sentence "Pegasus likes licorice". Since the name "Pegasus" fails to refer, no truth value
can be assigned to the sentence, there is nothing in the myth that
would justify any such assignment. However, there are some statements
about "Pegasus" which have definite truth values nevertheless, such as "Pegasus likes licorice or Pegasus doesn't like licorice". This sentence is an instance of the tautology, it should be true regardless of whether or not its components have a truth value.
Similarly, 1,000,000 grains of sand is a heap of sand may be considered a border case having no truth value, but 1,000,000 grains of sand is a heap of sand, or 1,000,000 grains of sand is not a heap of sand should be true.
A more acceptable solution is to call any collection of multiple grains (two or more) a heap, or to call a collection a heap if some grains of sand are supported solely by other grains of sand.