

I imagine this is a holdover from the early days of search engines where text corpora where too large to handle in their raw form, and so words were aggressively "stemmed" and tokenized to make the datasets computationally tractable. Names of symbols are often unusually hard to find, because (at least as of writing), Google ignores the symbols in your search query.

It also contains named symbols that are only on specific variants of the QWERTY keyboard (such as £, which doesn't occur on US keyboards) Material equivalence, If and only if, iff, Means the same asĪs you've probably noticed, the list contains basically all the symbols other than the letters and numbers on the average English keyboard.
