We ask users to provide proof(s), reference(s) to proof(s), or further clarification on the proof(s) in this space.
& : logical and
: -Pochhammer symbol : http://dlmf.nist.gov/5.18#i http://dlmf.nist.gov/17.2#SS1.p1
: sine function : http://dlmf.nist.gov/4.14#E1
: ratio of a circle's circumference to its diameter : http://dlmf.nist.gov/5.19.E4
: principle branch of logarithm logarithm : http://dlmf.nist.gov/4.2#E2
We ask users to provide relevant URL links in this space.