The top is pointed and the bottom is wide, like a hill, which is a semicolon, that is, ∧. The upper part is wide and the lower part is sharp, that is, ∨.

Semicolons and symbols are algebraic symbols. There are ∧∧∨~∫∮≠≤ (less than or equal to) ≥ (greater than or equal to) ∧∞ (infinity):

The invention and use of mathematical symbols are later than numbers, but their number exceeds numbers. There are more than 200 mathematical bar symbols commonly used in modern mathematics, and each symbol has an interesting experience.

";" semicolon

It is a punctuation mark between comma and period in hierarchical structure, which is mainly used to separate two clauses with certain relationship (juxtaposition, transition, commitment, cause and effect, etc.). )-Clauses can belong to a single repetitive sentence, or they can be the first-level clauses of multiple complex sentences, or they can be the juxtaposed parts of big sentences.

In addition, semicolons can also be used to separate parallel phrases that appear as enumerations, or different interpretations of the same meaning in dictionaries. See the text for details and examples. In addition, "semicolon" can also mean "branch"