The full-name quantifier phrases "to all" and "to any" mean the whole or all in the sentence, and are usually called full-name quantifiers in logic, and are represented by the symbol "".

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Propositions containing existential quantifiers are called special propositions. Special proposition? It is the form of "several s are all p"

Special propositions use existential quantifiers, such as "some" and "few", and can also use "basically", "general" and "just some". Propositions containing existential quantifiers are also called existential propositions.

The phrases "you yi" and "at least one" are usually called existential quantifiers in logic, and are represented by the symbol "".