In accounting under the traditional historical cost paradigm, historical cost is the original nominal monetary value of an economic item. Historical cost is based on the stable measuring unit assumption. In some circumstances, assets and liabilities may be shown at their historical cost, as if there had been no change in value since the date of acquisition. The balance sheet value of the item may therefore differ from the real value.
historical cost is always a relevant measure of an asset?
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Answer: yes

In mathematics, ''infinity'' is often treated as a number (i.e., it counts or measures things: ''an infinite number of terms'') but it is not the same sort of number as either a natural or a real number.
is negative infinity to positive infinity the same as all real numbers?
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Answer: no

In addition to the true folded mountains, known as the ridge and valley province, the area of dissected plateau to the north and west of the mountains is usually grouped with the Appalachians. This includes the Catskill Mountains of southeastern New York, the Poconos in Pennsylvania, and the Allegheny Plateau of southwestern New York, western Pennsylvania, eastern Ohio and northern West Virginia. This same plateau is known as the Cumberland Plateau in southern West Virginia, eastern Kentucky, western Virginia, eastern Tennessee, and northern Alabama.
are the poconos part of the appalachian mountains?
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Answer:
yes