SAT数学考试常用的符号有哪些.

　　SAT数学考试符号是令同学们最头疼的事了，一不小心出错，就会导致整个题失分，那么这些符号用英文诗怎么表示的呢？下面小编整理了SAT数学考试常用的一些符号，希望对大家有所帮助：

　　Logical Symbols A ⇒ B means if A is true then B is also true; if A is false then nothing is said about B. → may mean the same as ⇒ (the symbol may also indicate the domain and codomain of a function; see table of mathematical symbols).

　　Logical Symbols

　　A ⇒ B means if A is true then B is also true; if A is false then nothing is said about B.

　　→ may mean the same as ⇒ (the symbol may also indicate the domain and codomain of a function; see table of mathematical symbols).

　　⊃ may mean the same as ⇒ (the symbol may also mean superset).

　　A ⇔ B means A is true if B is true and A is false if B is false.

　　The statement ¬A is true if and only if A is false.

　　The statement A ∧ B is true if A and B are both true; else it is false.

　　The statement A ∨ B is true if A or B (or both) are true; if both are false, the statement is false.

　　∀ x: P(x) means P(x) is true for all x.

　　∃ x: P(x) means there is at least one x such that P(x) is true.

　　∃! x: P(x) means there is exactly one x such that P(x) is true.

　　x ⊢ y means y is derived from x.

　　以上就是小编为大家整理的关于SAT数学考试常用的符号大家在做数学题的时候一定要细心、仔细。不然一旦失分就得不偿失了。