I need to implement (in perl) the second formula in Lemma 6.3 of this paper.

As normal with this kind of paper the notation goes right over my head, so can anyone out there translate it into English for me?

Update: It seems I was the subject of a practical joke by one of my correspondents. My apologies to this forum.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to [OT] Call to arms for mathematicians:(Update: please ignore!) by BrowserUk

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