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Proof step 9 from proof delswr (previous step)

r ∈ H, r ∈ rs0, ∀ r1, H0, o0. r1 ∈ rs0 ∧ r1 ∈ H0 → H0[r1, o0] \ rs0 = H0 \ rs0 ⊦ # rs0 = 0, #(rs0 ++ r0) = 0, (H[r, o] \ rs0) -- r0 = (H \ rs0) -- r0, r = r0, rs0 = ∅

User applied rule all left

And closed the goal!

Rule argument

pos: left 3 terms: r, H, o abort: F discard: F computed: T

Additional information

Used terms: r, H, o