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Proof step 1 from proof dels-ignore-data (conclusion)
⊦ inodekey(ino) ∈ ro → (ri -- datakey(ino, n)) ⊖ ro = ri ⊖ ro
System applied rule normalize
And obtained the following new goals
Proof step 2
:
inodekey(ino) ∈ ro ⊦ (ri -- datakey(ino, n)) ⊖ ro = ri ⊖ ro
Rule argument
Additional information