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Question: nice writing of pochhammer symbols

Question:nice writing of pochhammer symbols

Jesús Guillera 75 Maple
substitution pochhammer
November 01 2023
1

Please, I would like writing the pochhammer's symbols or rising factorials in a nice way.

Trying

nicepo:=(a,b)->(a)[b];

apparently works, however the output of

substitute(pochhammer=nicepo,pochhammer(1/2,n));

is nicepo(1/2,n), and not the output I would like, namely (1/2)[n].

Is there a way of getting the output I want?
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