Reverse synergy?

Latin Learning Latin
1

Any ideas on how the word subiata works in the following quote?

subiata quicunque parte integrante tollitur totum

I think the translation is roughly: if you take away an essential part you take away the whole but how the first word operates is not clear.

Semper fidelis,
Athanasius

2

subiata must, nisi fallor, be sublata, agreeing with parte in abl. abs.

~D