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Theorem ext

⊦ H0 = H1 ↔ (∀ r. (r ∈ H0 ↔ r ∈ H1) ∧ (r ∈ H0 → H0[r] = H1[r]))

Type: An axiom
Validity: The proof is valid.
Features:
Comment:
Used by: alloc-write, at-uni, del-new, del-notin, del-sw, del-twice, del-uni, diff-at, diff-in, diffs-sw, diffs-twice, exin, in-uni, overwrite, overwrite-1, overwrite-split, overwrite-split2, size-uni, subset-emp, subset-uni, sw-alloc-put, sw-del-add, sw-del-add-new, sw-delwr, sw-put, uni-ass, uni-com, uni-inj, union-left-singleton, write-again, write-del,
Used by units in proved state: separation-rg, separation, rg, maplet, linked-list-aux, linked-list, heap-sep, heap-fun, embed-aux, cell-heap-aux,
Proof exists?: No