(1) stands for power. When inputting mathematical formulas on the computer, this symbol is often used to represent the power because it is inconvenient to input the power. For example, the fifth power of 2 is usually expressed as 2 5.

(2) Symbols representing logical operations.

∧ Logical or intersection operation If A is true and B is true, then the proposition A ∧ B is true; Otherwise it's fake. n & lt4∧n & gt； 2? N = 3, when n is a natural number, it is a complex mathematical symbol. Sometimes it can be marked on a known function to define a transformation function.

(3) In fuzzy mathematics, the symbol ∧ represents the operation of "taking the minimum", whereas ∨ represents the operation of "taking the maximum", that is, for any a, b∈{0, 1}, there are:

a∧b=min {0， 1}=0 .

a∨b=max {0， 1}= 1 .

Extended data:

λ is the eleventh Greek letter, pronounced Lambda (lowercase λ): ['laemd? ]。 Cosmic constant is a term that Einstein introduced into the field equation in order to explain the existence of a static universe with non-zero material density, that is, constant, which is expressed by the symbol λ.

Because this proportionality constant is very small, it can be ignored even on the scale of the Milky Way. The cosmological constant λ is only meaningful at the cosmic scale, so it is called cosmological constant.

References:

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