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Proof step 1 from proof introduce-sharing (conclusion) (back to tree)

⊦ ((hP0 ⊗ hP1))(h) ↔ (∃ hP. (((hP -* hP0) * (hP -* hP1) * hP))(h))

User applied rule case distinction

And obtained the following new goals

Rule argument

pos: right 1

Additional information

Proof step 2 from proof introduce-sharing (previous step) (back to tree)

((hP0 ⊗ hP1))(h) ⊦ ∃ hP. (((hP -* hP0) * (hP -* hP1) * hP))(h)

User applied rule apply rewrite lemma

And obtained the following new goals

Rule argument

spec: <toplevel>, name:sharing, seq:⊦ ((hP0 ⊗ hP1))(h) ↔ (∃ h0, h1, h2. h0 ⊥ h2 ∧ h0 ⊥ h1 ∧ h1 ⊥ h2 ∧ h = h0 ∪ h1 ∪ h2 ∧ hP0(h0 ∪ h2) ∧ hP1(h1 ∪ h2)), subst:[h, hP1, hP0] → [h, hP1, hP0], <all paths>

Additional information

Used terms: h, hP1, hP0

Proof step 3 from proof introduce-sharing (previous step) (back to tree)

⊦ ((hP0 ⊗ hP1))(h) ↔ (∃ h0, h1, h2. h0 ⊥ h2 ∧ h0 ⊥ h1 ∧ h1 ⊥ h2 ∧ h = h0 ∪ h1 ∪ h2 ∧ hP0(h0 ∪ h2) ∧ hP1(h1 ∪ h2))

Lemma sharing

Proof step 4 from proof introduce-sharing (previous step) (back to tree)

∃ h0, h1, h2. h0 ⊥ h2 ∧ h0 ⊥ h1 ∧ h1 ⊥ h2 ∧ h = h0 ∪ h1 ∪ h2 ∧ hP0(h0 ∪ h2) ∧ hP1(h1 ∪ h2) ⊦ ∃ hP. (((hP -* hP0) * (hP -* hP1) * hP))(h)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information

Proof step 5 from proof introduce-sharing (previous step) (back to tree)

hP0(h0 ∪ h2), hP1(h1 ∪ h2), h0 ⊥ h2, h0 ⊥ h1, h1 ⊥ h2 ⊦ ∃ hP. (((hP -* hP0) * (hP -* hP1) * hP))(h0 ∪ h1 ∪ h2)

User applied rule exists right

And obtained the following new goals

Rule argument

pos: right 1 terms: {h2} abort: F discard: T computed: F

Additional information

Used terms: {h2}

Proof step 6 from proof introduce-sharing (previous step) (back to tree)

hP0(h0 ∪ h2), hP1(h1 ∪ h2), h1 ⊥ h2, h0 ⊥ h1, h0 ⊥ h2, ¬ ((({h2} -* hP0) * ({h2} -* hP1) * {h2} ))(h0 ∪ h1 ∪ h2) ⊦

User applied rule apply rewrite lemma

And obtained the following new goals

Rule argument

spec: <toplevel>, name:split-union, seq: ⊦ hP0(h0) ∧ hP1(h1) ∧ h0 ⊥ h1 → ((hP0 * hP1))(h0 ∪ h1), subst:[h1, h0, hP1, hP0] → [h1 ∪ h2, h0, ({h2} -* hP1) * {h2} , {h2} -* hP0], <all paths>

Additional information

Used terms: h1 ∪ h2, h0, ({h2} -* hP1) * {h2} , {h2} -* hP0

Proof step 7 from proof introduce-sharing (previous step) (back to tree)

⊦ hP0(h0) ∧ hP1(h1) ∧ h0 ⊥ h1 → ((hP0 * hP1))(h0 ∪ h1)

Lemma split-union

Proof step 8 from proof introduce-sharing (previous step) (back to tree)

hP0(h0 ∪ h2), hP1(h1 ∪ h2), h0 ⊥ h2, h0 ⊥ h1, h1 ⊥ h2, ¬ ((({h2} -* hP0) * ({h2} -* hP1) * {h2} ))(h0 ∪ h1 ∪ h2) ⊦ (({h2} -* hP0))(h0) ∧ ((({h2} -* hP1) * {h2} ))(h1 ∪ h2) ∧ h0 ⊥ h1 ∪ h2

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information

Used simplifier rules: ⊦ h1 ⊥ h → (h0 ⊥ h1 ∪ h ↔ h0 ⊥ h1 ∧ h0 ⊥ h); (ws)

Proof step 9 from proof introduce-sharing (previous step) (back to tree)

hP0(h0 ∪ h2), hP1(h1 ∪ h2), h1 ⊥ h2, h0 ⊥ h1, h0 ⊥ h2, ¬ ((({h2} -* hP0) * ({h2} -* hP1) * {h2} ))(h0 ∪ h1 ∪ h2) ⊦ (({h2} -* hP0))(h0) ∧ ((({h2} -* hP1) * {h2} ))(h1 ∪ h2)

User applied rule apply rewrite lemma

And obtained the following new goals

Rule argument

spec: <toplevel>, name:split-union, seq: ⊦ hP0(h0) ∧ hP1(h1) ∧ h0 ⊥ h1 → ((hP0 * hP1))(h0 ∪ h1), subst:[h1, h0, hP1, hP0] → [h2, h1, {h2} , {h2} -* hP1], <all paths>

Additional information

Used terms: h2, h1, {h2} , {h2} -* hP1

Proof step 10 from proof introduce-sharing (previous step) (back to tree)

⊦ hP0(h0) ∧ hP1(h1) ∧ h0 ⊥ h1 → ((hP0 * hP1))(h0 ∪ h1)

Lemma split-union

Proof step 11 from proof introduce-sharing (previous step) (back to tree)

hP0(h0 ∪ h2), hP1(h1 ∪ h2), h0 ⊥ h2, h0 ⊥ h1, h1 ⊥ h2, ¬ ((({h2} -* hP0) * ({h2} -* hP1) * {h2} ))(h0 ∪ h1 ∪ h2) ⊦ (({h2} -* hP0))(h0) ∧ ((({h2} -* hP1) * {h2} ))(h1 ∪ h2), (({h2} -* hP1))(h1) ∧ {h2} (h2) ∧ h1 ⊥ h2

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information

Used simplifier rules: this: ⊦ {h} (h0) ↔ h = h0;

Proof step 12 from proof introduce-sharing (previous step) (back to tree)

hP0(h0 ∪ h2), hP1(h1 ∪ h2), h1 ⊥ h2, h0 ⊥ h1, h0 ⊥ h2, ¬ ((({h2} -* hP0) * ({h2} -* hP1) * {h2} ))(h0 ∪ h1 ∪ h2), ¬ (({h2} -* hP1))(h1) ⊦ (({h2} -* hP0))(h0) ∧ ((({h2} -* hP1) * {h2} ))(h1 ∪ h2)

User applied rule apply rewrite lemma

And obtained the following new goals

Rule argument

spec: <toplevel>, name:wand, seq: ⊦ ((hP0 -* hP1))(h) ↔ (∀ h1. h1 ⊥ h ∧ hP0(h1) → hP1(h1 ∪ h)), subst:[h, hP1, hP0] → [h1, hP1, {h2} ], <all paths>

Additional information

Used terms: h1, hP1, {h2}

Proof step 13 from proof introduce-sharing (previous step) (back to tree)

⊦ ((hP0 -* hP1))(h) ↔ (∀ h1. h1 ⊥ h ∧ hP0(h1) → hP1(h1 ∪ h))

Lemma wand

Proof step 14 from proof introduce-sharing (previous step) (back to tree)

hP0(h0 ∪ h2), hP1(h1 ∪ h2), h0 ⊥ h2, h0 ⊥ h1, h1 ⊥ h2, ¬ ((({h2} -* hP0) * ({h2} -* hP1) * {h2} ))(h0 ∪ h1 ∪ h2), ∃ h0. ¬(h0 ⊥ h1 ∧ {h2} (h0) → hP1(h0 ∪ h1)) ⊦ (({h2} -* hP0))(h0) ∧ ((({h2} -* hP1) * {h2} ))(h1 ∪ h2)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information

Used simplifier rules: this: ⊦ {h} (h0) ↔ h = h0; ⊦ h0 ⊥ h1 → h1 ⊥ h0; (s)

Proof step 15 from proof introduce-sharing (previous step) (back to tree)

hP0(h0 ∪ h), hP1(h1 ∪ h), h0 ⊥ h, h0 ⊥ h1, h1 ⊥ h, ¬ ((({h} -* hP0) * ({h} -* hP1) * {h} ))(h0 ∪ h1 ∪ h), ¬ hP1(h ∪ h1) ⊦ (({h} -* hP0))(h0) ∧ ((({h} -* hP1) * {h} ))(h1 ∪ h)

User applied rule apply rewrite lemma

And obtained the following new goals

Rule argument

spec: heap, name:uni-com, seq: ⊦ h0 ⊥ h1 → h1 ∪ h0 = h0 ∪ h1, subst:[h0, h1] → [h1, h], <all paths>

Additional information

Used terms: h1, h

Proof step 16 from proof introduce-sharing (previous step) (back to tree)

⊦ h0 ⊥ h1 → h1 ∪ h0 = h0 ∪ h1

A spec-lemma

Proof step 17 from proof introduce-sharing (previous step) (back to tree)

(({h2} -* hP1))(h1), hP0(h0 ∪ h2), hP1(h1 ∪ h2), {h2} (h2), h0 ⊥ h2, h0 ⊥ h1, h1 ⊥ h2, ¬ ((({h2} -* hP0) * ({h2} -* hP1) * {h2} ))(h0 ∪ h1 ∪ h2) ⊦ (({h2} -* hP0))(h0) ∧ true

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information

Used simplifier rules: this: ⊦ {h} (h0) ↔ h = h0;

Proof step 18 from proof introduce-sharing (previous step) (back to tree)

(({h2} -* hP1))(h1), hP0(h0 ∪ h2), hP1(h1 ∪ h2), h1 ⊥ h2, h0 ⊥ h1, h0 ⊥ h2, ¬ ((({h2} -* hP0) * ({h2} -* hP1) * {h2} ))(h0 ∪ h1 ∪ h2), ¬ (({h2} -* hP0))(h0) ⊦

User applied rule apply rewrite lemma

And obtained the following new goals

Rule argument

spec: <toplevel>, name:wand, seq: ⊦ ((hP0 -* hP1))(h) ↔ (∀ h1. h1 ⊥ h ∧ hP0(h1) → hP1(h1 ∪ h)), subst:[h, hP1, hP0] → [h0, hP0, {h2} ], <all paths>

Additional information

Used terms: h0, hP0, {h2}

Proof step 19 from proof introduce-sharing (previous step) (back to tree)

⊦ ((hP0 -* hP1))(h) ↔ (∀ h1. h1 ⊥ h ∧ hP0(h1) → hP1(h1 ∪ h))

Lemma wand

Proof step 20 from proof introduce-sharing (previous step) (back to tree)

(({h2} -* hP1))(h1), hP0(h0 ∪ h2), hP1(h1 ∪ h2), h0 ⊥ h2, h0 ⊥ h1, h1 ⊥ h2, ¬ ((({h2} -* hP0) * ({h2} -* hP1) * {h2} ))(h0 ∪ h1 ∪ h2), ∃ h1. ¬(h1 ⊥ h0 ∧ {h2} (h1) → hP0(h1 ∪ h0)) ⊦

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information

Used simplifier rules: this: ⊦ {h} (h0) ↔ h = h0; ⊦ h0 ⊥ h1 → h1 ⊥ h0; (s)

Proof step 21 from proof introduce-sharing (previous step) (back to tree)

(({h} -* hP1))(h1), hP0(h0 ∪ h), hP1(h1 ∪ h), h0 ⊥ h, h0 ⊥ h1, h1 ⊥ h, ¬ ((({h} -* hP0) * ({h} -* hP1) * {h} ))(h0 ∪ h1 ∪ h), ¬ hP0(h ∪ h0) ⊦

User applied rule apply rewrite lemma

And obtained the following new goals

Rule argument

spec: heap, name:uni-com, seq: ⊦ h0 ⊥ h1 → h1 ∪ h0 = h0 ∪ h1, subst:[h0, h1] → [h0, h], <all paths>

Additional information

Used terms: h0, h

Proof step 22 from proof introduce-sharing (previous step) (back to tree)

⊦ h0 ⊥ h1 → h1 ∪ h0 = h0 ∪ h1

A spec-lemma

Proof step 23 from proof introduce-sharing (previous step) (back to tree)

¬ ((hP0 ⊗ hP1))(h), ∃ hP. (((hP -* hP0) * (hP -* hP1) * hP))(h) ⊦

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information

Proof step 24 from proof introduce-sharing (previous step) (back to tree)

(((hP -* hP0) * (hP -* hP1) * hP))(h), ¬ ((hP0 ⊗ hP1))(h) ⊦

User applied rule apply rewrite lemma

And obtained the following new goals

Rule argument

spec: <toplevel>, name:sep, seq: ⊦ ((hP0 * hP1))(h) ↔ (∃ h0, h1. h0 ⊥ h1 ∧ h = h0 ∪ h1 ∧ hP0(h0) ∧ hP1(h1)), subst:[h, hP1, hP0] → [h, (hP -* hP1) * hP, hP -* hP0], <all paths>

Additional information

Used terms: h, (hP -* hP1) * hP, hP -* hP0

Proof step 25 from proof introduce-sharing (previous step) (back to tree)

⊦ ((hP0 * hP1))(h) ↔ (∃ h0, h1. h0 ⊥ h1 ∧ h = h0 ∪ h1 ∧ hP0(h0) ∧ hP1(h1))

Lemma sep

Proof step 26 from proof introduce-sharing (previous step) (back to tree)

¬ ((hP0 ⊗ hP1))(h), ∃ h0, h1. h0 ⊥ h1 ∧ h = h0 ∪ h1 ∧ ((hP -* hP0))(h0) ∧ (((hP -* hP1) * hP))(h1) ⊦

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information

Proof step 27 from proof introduce-sharing (previous step) (back to tree)

(((hP -* hP1) * hP))(h1), ((hP -* hP0))(h0), h0 ⊥ h1, ¬ ((hP0 ⊗ hP1))(h0 ∪ h1) ⊦

User applied rule apply rewrite lemma

And obtained the following new goals

Rule argument

spec: <toplevel>, name:sep, seq: ⊦ ((hP0 * hP1))(h) ↔ (∃ h0, h1. h0 ⊥ h1 ∧ h = h0 ∪ h1 ∧ hP0(h0) ∧ hP1(h1)), subst:[h, hP1, hP0] → [h1, hP, hP -* hP1], <all paths>

Additional information

Used terms: h1, hP, hP -* hP1

Proof step 28 from proof introduce-sharing (previous step) (back to tree)

⊦ ((hP0 * hP1))(h) ↔ (∃ h0, h1. h0 ⊥ h1 ∧ h = h0 ∪ h1 ∧ hP0(h0) ∧ hP1(h1))

Lemma sep

Proof step 29 from proof introduce-sharing (previous step) (back to tree)

((hP -* hP0))(h0), h0 ⊥ h1, ¬ ((hP0 ⊗ hP1))(h0 ∪ h1), ∃ h0, h2. h0 ⊥ h2 ∧ h1 = h0 ∪ h2 ∧ ((hP -* hP1))(h0) ∧ hP(h2) ⊦

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information

Used simplifier rules: ⊦ h1 ⊥ h → (h0 ⊥ h1 ∪ h ↔ h0 ⊥ h1 ∧ h0 ⊥ h); (ws)

Proof step 30 from proof introduce-sharing (previous step) (back to tree)

((hP -* hP0))(h0), ((hP -* hP1))(h), hP(h2), h ⊥ h2, h0 ⊥ h, h0 ⊥ h2, ¬ ((hP0 ⊗ hP1))(h0 ∪ h ∪ h2) ⊦

User applied rule apply rewrite lemma

And obtained the following new goals

Rule argument

spec: <toplevel>, name:sharing, seq:⊦ ((hP0 ⊗ hP1))(h) ↔ (∃ h0, h1, h2. h0 ⊥ h2 ∧ h0 ⊥ h1 ∧ h1 ⊥ h2 ∧ h = h0 ∪ h1 ∪ h2 ∧ hP0(h0 ∪ h2) ∧ hP1(h1 ∪ h2)), subst:[h, hP1, hP0] → [h0 ∪ h ∪ h2, hP1, hP0], <all paths>

Additional information

Used terms: h0 ∪ h ∪ h2, hP1, hP0

Proof step 31 from proof introduce-sharing (previous step) (back to tree)

⊦ ((hP0 ⊗ hP1))(h) ↔ (∃ h0, h1, h2. h0 ⊥ h2 ∧ h0 ⊥ h1 ∧ h1 ⊥ h2 ∧ h = h0 ∪ h1 ∪ h2 ∧ hP0(h0 ∪ h2) ∧ hP1(h1 ∪ h2))

Lemma sharing

Proof step 32 from proof introduce-sharing (previous step) (back to tree)

((hP -* hP1))(h), ((hP -* hP0))(h0), hP(h2), h0 ⊥ h2, h0 ⊥ h, h ⊥ h2, ∀ h1, h3, h4. ¬(h1 ⊥ h4 ∧ h1 ⊥ h3 ∧ h3 ⊥ h4 ∧ h0 ∪ h ∪ h2 = h1 ∪ h3 ∪ h4 ∧ hP0(h1 ∪ h4) ∧ hP1(h3 ∪ h4)) ⊦

User applied rule apply rewrite lemma

And obtained the following new goals

Rule argument

spec: <toplevel>, name:wand, seq: ⊦ ((hP0 -* hP1))(h) ↔ (∀ h1. h1 ⊥ h ∧ hP0(h1) → hP1(h1 ∪ h)), subst:[h, hP1, hP0] → [h0, hP0, hP], <all paths>

Additional information

Used terms: h0, hP0, hP

Proof step 33 from proof introduce-sharing (previous step) (back to tree)

⊦ ((hP0 -* hP1))(h) ↔ (∀ h1. h1 ⊥ h ∧ hP0(h1) → hP1(h1 ∪ h))

Lemma wand

Proof step 34 from proof introduce-sharing (previous step) (back to tree)

((hP -* hP1))(h), hP(h2), h ⊥ h2, h0 ⊥ h, h0 ⊥ h2, ∀ h1, h3, h4. ¬(h1 ⊥ h4 ∧ h1 ⊥ h3 ∧ h3 ⊥ h4 ∧ h0 ∪ h ∪ h2 = h1 ∪ h3 ∪ h4 ∧ hP0(h1 ∪ h4) ∧ hP1(h3 ∪ h4)), ∀ h1. h1 ⊥ h0 ∧ hP(h1) → hP0(h1 ∪ h0) ⊦

User applied rule apply rewrite lemma

And obtained the following new goals

Rule argument

spec: <toplevel>, name:wand, seq: ⊦ ((hP0 -* hP1))(h) ↔ (∀ h1. h1 ⊥ h ∧ hP0(h1) → hP1(h1 ∪ h)), subst:[h, hP1, hP0] → [h, hP1, hP], <all paths>

Additional information

Used terms: h, hP1, hP

Proof step 35 from proof introduce-sharing (previous step) (back to tree)

⊦ ((hP0 -* hP1))(h) ↔ (∀ h1. h1 ⊥ h ∧ hP0(h1) → hP1(h1 ∪ h))

Lemma wand

Proof step 36 from proof introduce-sharing (previous step) (back to tree)

hP(h2), h0 ⊥ h2, h0 ⊥ h, h ⊥ h2, ∀ h1. h1 ⊥ h0 ∧ hP(h1) → hP0(h1 ∪ h0), ∀ h1, h3, h4. ¬(h1 ⊥ h4 ∧ h1 ⊥ h3 ∧ h3 ⊥ h4 ∧ h0 ∪ h ∪ h2 = h1 ∪ h3 ∪ h4 ∧ hP0(h1 ∪ h4) ∧ hP1(h3 ∪ h4)), ∀ h1. h1 ⊥ h ∧ hP(h1) → hP1(h1 ∪ h) ⊦

User applied rule all left

And obtained the following new goals

Rule argument

pos: left 5 terms: h2 abort: F discard: T computed: F

Additional information

Used terms: h2

Proof step 37 from proof introduce-sharing (previous step) (back to tree)

hP(h2), h ⊥ h2, h0 ⊥ h, h0 ⊥ h2, h2 ⊥ h0 ∧ hP(h2) → hP0(h2 ∪ h0), ∀ h1. h1 ⊥ h ∧ hP(h1) → hP1(h1 ∪ h), ∀ h1, h3, h4. ¬(h1 ⊥ h4 ∧ h1 ⊥ h3 ∧ h3 ⊥ h4 ∧ h0 ∪ h ∪ h2 = h1 ∪ h3 ∪ h4 ∧ hP0(h1 ∪ h4) ∧ hP1(h3 ∪ h4)) ⊦

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information

Used simplifier rules: ⊦ h0 ⊥ h1 → h1 ⊥ h0; (s)

Proof step 38 from proof introduce-sharing (previous step) (back to tree)

hP(h2), hP0(h2 ∪ h0), h0 ⊥ h2, h0 ⊥ h, h ⊥ h2, ∀ h1, h3, h4. ¬ h1 ⊥ h4 ∨ ¬ h1 ⊥ h3 ∨ ¬ h3 ⊥ h4 ∨ h0 ∪ h ∪ h2 ≠ h1 ∪ h3 ∪ h4 ∨ ¬ hP0(h1 ∪ h4) ∨ ¬ hP1(h3 ∪ h4), ∀ h1. h1 ⊥ h ∧ hP(h1) → hP1(h1 ∪ h) ⊦

User applied rule all left

And obtained the following new goals

Rule argument

pos: left 7 terms: h2 abort: F discard: T computed: F

Additional information

Used terms: h2

Proof step 39 from proof introduce-sharing (previous step) (back to tree)

hP(h2), hP0(h2 ∪ h0), h ⊥ h2, h0 ⊥ h, h0 ⊥ h2, h2 ⊥ h ∧ hP(h2) → hP1(h2 ∪ h), ∀ h1, h3, h4. ¬ h1 ⊥ h4 ∨ ¬ h1 ⊥ h3 ∨ ¬ h3 ⊥ h4 ∨ h0 ∪ h ∪ h2 ≠ h1 ∪ h3 ∪ h4 ∨ ¬ hP0(h1 ∪ h4) ∨ ¬ hP1(h3 ∪ h4) ⊦

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information

Used simplifier rules: ⊦ h0 ⊥ h1 → h1 ⊥ h0; (s)

Proof step 40 from proof introduce-sharing (previous step) (back to tree)

hP(h2), hP0(h2 ∪ h0), hP1(h2 ∪ h), h0 ⊥ h2, h0 ⊥ h, h ⊥ h2, ∀ h1, h3, h4. ¬ h1 ⊥ h4 ∨ ¬ h1 ⊥ h3 ∨ ¬ h3 ⊥ h4 ∨ h0 ∪ h ∪ h2 ≠ h1 ∪ h3 ∪ h4 ∨ ¬ hP0(h1 ∪ h4) ∨ ¬ hP1(h3 ∪ h4) ⊦

User applied rule apply rewrite lemma

And obtained the following new goals

Rule argument

spec: heap, name:uni-com, seq: ⊦ h0 ⊥ h1 → h1 ∪ h0 = h0 ∪ h1, subst:[h0, h1] → [h, h2], <all paths>

Additional information

Used terms: h, h2

Proof step 41 from proof introduce-sharing (previous step) (back to tree)

⊦ h0 ⊥ h1 → h1 ∪ h0 = h0 ∪ h1

A spec-lemma

Proof step 42 from proof introduce-sharing (previous step) (back to tree)

hP(h2), hP0(h2 ∪ h0), hP1(h ∪ h2), h0 ⊥ h, h0 ⊥ h2, h ⊥ h2, ∀ h1, h3, h4. ¬ h1 ⊥ h4 ∨ ¬ h1 ⊥ h3 ∨ ¬ h3 ⊥ h4 ∨ h0 ∪ h ∪ h2 ≠ h1 ∪ h3 ∪ h4 ∨ ¬ hP0(h1 ∪ h4) ∨ ¬ hP1(h3 ∪ h4) ⊦

User applied rule apply rewrite lemma

And obtained the following new goals

Rule argument

spec: heap, name:uni-com, seq: ⊦ h0 ⊥ h1 → h1 ∪ h0 = h0 ∪ h1, subst:[h0, h1] → [h0, h2], <all paths>

Additional information

Used terms: h0, h2

Proof step 43 from proof introduce-sharing (previous step) (back to tree)

⊦ h0 ⊥ h1 → h1 ∪ h0 = h0 ∪ h1

A spec-lemma

Proof step 44 from proof introduce-sharing (previous step) (back to tree)

hP(h2), hP0(h0 ∪ h2), hP1(h ∪ h2), h ⊥ h2, h0 ⊥ h, h0 ⊥ h2, ∀ h1, h3, h4. ¬ h1 ⊥ h4 ∨ ¬ h1 ⊥ h3 ∨ ¬ h3 ⊥ h4 ∨ h0 ∪ h ∪ h2 ≠ h1 ∪ h3 ∪ h4 ∨ ¬ hP0(h1 ∪ h4) ∨ ¬ hP1(h3 ∪ h4) ⊦

User applied rule all left

And closed the goal!

Rule argument

pos: left 7 terms: h0, h, h2 abort: F discard: T computed: T

Additional information

Used terms: h0, h, h2

Proof Tree for introduce-sharing (View conclusion)

The following image shows the proof tree of sequent calculus. The proved goal is at the bottom. You can click on the nodes to view additional rules. See here for details on colors in a proof tree.

the proof tree