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Proof step 5 from proof fwd-inv-gblock-rem-del (previous step)

n ∈ gstore, ∀ n0. n0 ∈ gstore \ (ginval -- n) → inv((gstore \ (ginval -- n))[n0]) ⊦ inv(gstore[n])

User applied rule all left

And obtained the following new goals

Proof step 6:
n ∈ gstore, n ∈ gstore \ (ginval -- n) → inv((gstore \ (ginval -- n))[n]) ⊦ inv(gstore[n])

Rule argument

pos: left 2 terms: n abort: F discard: T computed: T

Additional information

Used terms: n