Could someone help for proving this problem (identity 212)?

Stream: new members

[Jasin Jiang]

This is the informal statement and I am struggled with the proof.
image.png
image.png

[Daniel Weber]

Do you know an informal proof?

[Jasin Jiang]

Daniel Weber said:

Do you know an informal proof?

I just want to know how to prove it in informal ways hahaha

[Luigi Massacci]

Have you tried just doing induction on m?

[Daniel Weber]

See https://math.stackexchange.com/a/572445/752906

[Jasin Jiang]

Luigi Massacci said:

Have you tried just doing induction on m?

I have to solve this problem in this week.
But now I have to solve another question. (sad)

[Rob Lewis]

Jasin Jiang said:

I have to solve this problem in this week.
But now I have to solve another question. (sad)

Out of curiosity, who is assigning these problems to you?

[Notification Bot]

This topic was moved here from #general > Could someone help for proving this problem (identity 212)? by Yury G. Kudryashov.