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Proof step 4 from proof alloc (previous step)

P(H), ∀ r. r ∈ H ∨ r = null ⊦

User applied rule insert spec-lemma

And obtained the following new goals

Proof step 1:
⊦ ∃ r. ¬ r ∈ H ∧ r ≠ null

Rule argument

[x0lemmaarg: spec-name: ops-impl instance-name: lemma-name: infinite-mem antecedent: succedent: ∃ r. ¬ r ∈ H ∧ r ≠ null substlist: [H] → [H] add preconditions?: F is rewrite lemma?: F current spec?: F rotate lemma?: F replace all?: F paths: () dummy: () ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (H)]]