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Theorem base for Specification linked-list-seg

This is a listing of all goals defined over the current specification. Axioms are marked yellow, proved theorems green and unproved theorems blue. Click on individual names to get more information on the proof.

Name: Sequent: Type:
lls-rec ⊦ lls(r, r1, a ' + x) = _∃(λ r0. r => a × r0 * lls(r0, r1, x)) An Axiom
lls-base ⊦ lls(r0, r1, []) = (emp ∧ ⌜r0 = r1⌝ ) An Axiom
ll-trav1-def ⊦ ((ll-trav(r0, r1, x) * P))(H) ↔ (∃ x0, x1. x = x0 + x1 ∧ ((lls(r0, r1, x0) * lls(r1, null, x1) * P))(H)) An Axiom
ll-trav2-nonnull-def⊦ r1 ≠ null → (((ll-trav(r0, r1, r2, x) * P))(H) ↔ (∃ x0, x1, a. x = x0 + (a + x1) ∧ ((lls(r0, r1, x0) * r1 => a × r2 * lls(r2, null, x1) * P))(H))) An Axiom
ll-trav2-null-def ⊦ ((ll-trav(r0, null, r2, x) * P))(H) ↔ r2 = r0 ∧ ((lls(r0, null, x) * P))(H) An Axiom
ll-trav1-endr1 ≠ null ⊦ H[r1] = a × null → (((ll-trav(r0, r1, x) * P))(H) ↔ x ≠ [] ∧ (∃ y. x = y + a ∧ ((lls(r0, r1, y) * r1 => a × null * P))(H))) A User Theorem
ll-trav1-init ⊦ ((lls(r0, null, x) * P))(H) → ((ll-trav(r0, r0, x) * P))(H) A User Theorem
ll-trav1-nextr1 ≠ null ⊦ ((ll-trav(r0, r1, x) * P))(H) ∧ H[r1] = a × r → ((ll-trav(r0, r, x) * P))(H) A User Theorem
ll-trav2-endr2 ≠ null ⊦ H[r2] = a × null → ( ((ll-trav(r0, r1, r2, x) * P))(H) ↔ x ≠ [] ∧ (r1 = null ⊃ r0 = r2 ∧ ((lls(r0, null, x) * P))(H) ;∃ y, b. x = y + (b +2 a) ∧ ((lls(r0, r1, y) * r1 => b × r2 * r2 => a × null * P))(H) )) A User Theorem
ll-trav2-init ⊦ ((lls(r0, null, x) * P))(H) → ((ll-trav(r0, null, r0, x) * P))(H) A User Theorem
ll-trav2-nextr2 ≠ null ⊦ ((ll-trav(r0, r1, r2, x) * P))(H) ∧ H[r2] = a × r → ((ll-trav(r0, r2, r, x) * P))(H) A User Theorem
lls-consecutive ⊦ ((lls(r0, r1, x) * lls(r1, r2, y) * P))(H) → ((lls(r0, r2, x + y) * P))(H) A User Theorem
lls-fold-head ⊦ ((r0 => a × r1 * lls(r1, r2, x) * P))(H) ↔ ((lls(r0, r2, a ' + x) * P))(H) ∧ True(H[r0].nxt = r1) A User Theorem
lls-fold-tailx ≠ [] ⊦ ((r1 => x.last × r2 * lls(r0, r1, x.butlast) * P))(H) → ((lls(r0, r2, x) * P))(H) A User Theorem
lls-null ⊦ lls(null, r, x) = (emp ∧ ⌜r = null⌝ ∧ ⌜x = []⌝ ) A User Theorem
lls-one ⊦ lls(r0, r1, a ') = r0 => a × r1 A User Theorem
lls-unfold-headx ≠ [] ⊦ ((lls(r0, r2, x) * P))(H) ↔ (∃ a, y, r1. ((r0 => a × r1 * lls(r1, r2, y) * P))(H) ∧ x = a ' + y) A User Theorem
lls-unfold-head-simpr0 ≠ r2 ⊦ H[r0] = ce → (((lls(r0, r2, x) * P))(H) ↔ (∃ a, y, r1. ((r0 => a × r1 * lls(r1, r2, y) * P))(H) ∧ x = a ' + y)) A User Theorem
lls-unfold-tail ⊦ lls(r0, r2, x + a ') = _∃(λ r1. lls(r0, r1, x) * r1 => a × r2) A User Theorem