The grand potential and total Helmholtz free energy

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xibeisiber
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what's the relation of the grand potential [itex]J=F-\mu N[/itex] and total Helmholtz free energy of "system and particle environment" [itex]F^{tot}[/itex]?
In K. Sekimoto's book "Stochastic Energetics" P182, P310 and P311 (see screenshots in the link):
Does it mean the followings:[itex]J=lim[F_{tot}-\mu N_{tot}], lim[F^c]=lim[\mu(N_{tot}-N)], lim[\Omega^cf^c]=lim[\mu N_{tot}][/itex],
And the right term of the formula above A.77 seems to be lack of a factor [itex]\frac{N_{tot}^{N_{tot}}}{N_{tot}!}[/itex],which is infinite when [itex]N_{tot}->\infty[/itex].
 
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Nobody?:L:L
Google book of Stochastic Energetics: link
Is there any problem in the formula A.75(p310) and the first formula in p311?