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Proof step 22 from proof newrefs-last-01 (previous step)

¬ (newref(st[newref(st) -- 0 ', noval]) ' + newref_list(m, st[newref(st) -- 0 ', noval][newref(st[newref(st) -- 0 ', noval]) -- 0 ', noval])) .last ∈ newref_list(m, st[newref(st) -- 0 ', noval]), ∀ st0. ¬ (newref(st0) ' + newref_list(m, st0[newref(st0) -- 0 ', noval])) .last ∈ newref_list(m, st0) ⊦ m = 0, ¬ (newref(st[newref(st) -- 0 ', noval]) ' + newref_list(m, st[newref(st) -- 0 ', noval][newref(st[newref(st) -- 0 ', noval]) -- 0 ', noval])) .last ∈ newref_list(m, st[newref(st) -- 0 ', noval]) ∧ (newref(st[newref(st) -- 0 ', noval]) ' + newref_list(m, st[newref(st) -- 0 ', noval][newref(st[newref(st) -- 0 ', noval]) -- 0 ', noval])) .last ≠ newref(st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 21:
(newref(st[newref(st) -- 0 ', noval]) ' + newref_list(m, st[newref(st) -- 0 ', noval][newref(st[newref(st) -- 0 ', noval]) -- 0 ', noval])) .last = newref(st), ∀ st0. ¬ (newref(st0) ' + newref_list(m, st0[newref(st0) -- 0 ', noval])) .last ∈ newref_list(m, st0) ⊦ m = 0, newref(st) ∈ newref_list(m, st[newref(st) -- 0 ', noval])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]