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A forcing or partially ordered set is proper if for all regular uncountable cardinals, forcing with P preserves stationary subsets of [].. The proper forcing axiom asserts that if is proper and is a dense subset of for each <, then there is a filter such that is nonempty for all <.
def – define or definition. deg – degree of a polynomial, or other recursively-defined objects such as well-formed formulas. (Also written as ∂.) del – del, a differential operator. (Also written as.) det – determinant of a matrix or linear transformation. DFT – discrete Fourier transform.
The prime-factor algorithm (PFA), also called the Good–Thomas algorithm (1958/1963), is a fast Fourier transform (FFT) algorithm that re-expresses the discrete Fourier transform (DFT) of a size N = N 1 N 2 as a two-dimensional N 1 ×N 2 DFT, but only for the case where N 1 and N 2 are relatively prime.
.pfa, Printer Font ASCII, a file extension for PostScript Printer Font ASCII Predictive failure analysis , a technology for hard disk health monitoring, the predecessor of S.M.A.R.T. Portable Format for Analytics , a JSON-based file format for encoding data analytics, such as data mining models.
NYR-NBD, meaning Need Your Response - Next Business Day. Meaning requires a response before the end of the next working day. OoO, meaning Out of Office. Used in corporate emails to indicate that the sender will not be at work. PFA, meaning Please Find Attached / Attachment. Used in corporate emails to indicate that a document or set of ...
3. Between two groups, may mean that the first one is a proper subgroup of the second one. > (greater-than sign) 1. Strict inequality between two numbers; means and is read as "greater than". 2. Commonly used for denoting any strict order. 3. Between two groups, may mean that the second one is a proper subgroup of the first one. ≤ 1.
Rigor is a cornerstone quality of mathematics, and can play an important role in preventing mathematics from degenerating into fallacies. well-behaved An object is well-behaved (in contrast with being Pathological ) if it satisfies certain prevailing regularity properties, or if it conforms to mathematical intuition (even though intuition can ...
The rationale behind this is that it enables design and usage of special mathematical characters that include all necessary properties to differentiate from other alphanumerics, e.g. in mathematics an italic "𝐴" can have a different meaning from a roman letter "A".