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Theorem base for Specification znode-ops

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:
scan-base ⊦ scan(key, zbrar, m, 0) = m An Axiom
scan-rec ⊦ scan(key, zbrar, m, n + 1) = (key ≤ zbrar[m].key ⊃ m;scan(key, zbrar, m + 1, n)) An Axiom
shr ⊦ shr(zbrar, n, m) = copy(zbrar, n, zbrar, n + 1, m - n) An Axiom
shl ⊦ shl(zbrar, n, m) = copy(zbrar, n + 1, zbrar, n, m - n - 1) An Axiom
load-node ⊦ load(r, ind) = mkznode(r, load(ind.branches, 0, ind.usedsize), ind.leaf, false, ind.usedsize) An Axiom
save-node ⊦ save(znd) = indexnode(save(znd.zbranches, 0, znd.usedsize), znd.leaf, znd.usedsize) An Axiom
load-branches-base ⊦ load(brar, m, 0) = mkzbrarray(BRANCH_SIZE) An Axiom
load-branches-rec ⊦ load(brar, m, nused + 1) = load(brar, m + 1, nused)[m, load(brar[m])] An Axiom
save-branches-base ⊦ save(zbrar, m, 0) = mkbrarray(BRANCH_SIZE) An Axiom
save-branches-rec ⊦ save(zbrar, m, nused + 1) = save(zbrar, m + 1, nused)[m, save(zbrar[m])] An Axiom
load-branch ⊦ load(mkbranch(key, adr)) = mkzbranch(key, adr, null) An Axiom
load-entry ⊦ load(mkentry(key, adr)) = mkzentry(key, adr) An Axiom
save-branch ⊦ save(mkzbranch(key, adr, r)) = mkbranch(key, adr) An Axiom
save-entry ⊦ save(mkzentry(key, adr)) = mkentry(key, adr) An Axiom
at-loadn < nused, m + nused ≤ BRANCH_SIZE ⊦ load(brar, m, nused)[m + n] = load(brar[m + n]) A User Theorem
at-load-0n < nused, nused ≤ BRANCH_SIZE ⊦ load(brar, 0, nused)[n] = load(brar[n]) A User Theorem
at-load-1n < nused, nused < BRANCH_SIZE ⊦ load(brar, 0, nused)[n] = load(brar[n]) A User Theorem
at-saven < nused, m + nused ≤ BRANCH_SIZE ⊦ save(zbrar, m, nused)[m + n] = save(zbrar[m + n]) A User Theorem
at-save-0n < nused, nused ≤ BRANCH_SIZE ⊦ save(zbrar, 0, nused)[n] = save(zbrar[n]) A User Theorem
at-save-1n < nused, nused < BRANCH_SIZE ⊦ save(zbrar, 0, nused)[n] = save(zbrar[n]) A User Theorem
at-save-out-lowern < m, m + nused ≤ BRANCH_SIZE ⊦ save(zbrar, m, nused)[n] = mkbrarray(BRANCH_SIZE)[n] A User Theorem
at-save-out-upperm + nused ≤ n, n < BRANCH_SIZE ⊦ save(zbrar, m, nused)[n] = mkbrarray(BRANCH_SIZE)[n] A User Theorem
at-shlm0 < # zbrar, n ≤ m ⊦ shl(zbrar, n, m)[m0] = (m0 < n ∨ n + (m - n - 1) ≤ m0 ⊃ zbrar[m0];zbrar[m0 + 1]) A User Theorem
at-shrm0 < # zbrar, n ≤ m ⊦ shr(zbrar, n, m)[m0] = (m0 ≤ n ∨ m < m0 ⊃ zbrar[m0];zbrar[m0 - 1]) A User Theorem
load-branch-child ⊦ load(br) = mkzbranch(key, adr, r) ↔ r = null ∧ br = mkbranch(key, adr) A User Theorem
load-branches-last ⊦ load(brar, m, nused + 1) = load(brar, m, nused)[m + nused, load(brar[m + nused])] A User Theorem
load-child ⊦ load(br).branch? → load(br).child = null A User Theorem
load-properties ⊦ load(r0, ind) = mkznode(r1, zbrar, bv0, bv1, n) → r0 = r1 ∧ (bv0 ↔ ind.leaf) ∧ (bv1 ↔ false) ∧ n = ind.usedsize A User Theorem
load-save-branch ⊦ load(save(zbr)).branch? ↔ zbr.branch? A User Theorem
load-save-entry ⊦ load(save(zbr)).entry? ↔ zbr.entry? A User Theorem
load-save-key ⊦ load(save(zbrar[n])).key = zbrar[n].key A User Theorem
load-size ⊦ # load(brar, m, nused) = BRANCH_SIZE A User Theorem
save-branches-last ⊦ save(zbrar, m, nused + 1) = save(zbrar, m, nused)[m + nused, save(zbrar[m + nused])] A User Theorem
save-load-save ⊦ m + nused ≤ BRANCH_SIZE → save(load(save(zbrar, m, nused), m, nused), m, nused) = save(zbrar, m, nused) A User Theorem
save-load-save-br ⊦ save(load(save(zbr))) = save(zbr) A User Theorem
save-properties ⊦ save(znd) = indexnode(brar, bv, n) → (bv ↔ znd.leaf) ∧ n = znd.usedsize A User Theorem
save-size ⊦ # save(zbrar, m, nused) = BRANCH_SIZE A User Theorem
scan-branch⊦ zbrar[m + n] = mkzbranch(key, adr, r) ∧ sorted(zbrar, m, nused) ∧ n < len ∧ len ≤ nused ∧ m + nused ≤ # zbrar → scan(key, zbrar, m, len) = m + n A User Theorem
scan-branch-0 ⊦ zbrar[n] = mkzbranch(key, adr, r) ∧ sorted(zbrar, 0, nused) ∧ n < len ∧ len ≤ nused ∧ nused ≤ # zbrar → scan(key, zbrar, 0, len) = n A User Theorem
scan-entry ⊦ zbrar[m + n] = mkzentry(key, adr) ∧ sorted(zbrar, m, nused) ∧ n < len ∧ len ≤ nused ∧ m + nused ≤ # zbrar → scan(key, zbrar, m, len) = m + n A User Theorem
scan-entry-0 ⊦ zbrar[n] = mkzentry(key, adr) ∧ sorted(zbrar, 0, nused) ∧ n < len ∧ len ≤ nused ∧ nused ≤ # zbrar → scan(key, zbrar, 0, len) = n A User Theorem
scan-given ⊦ sorted(zbrar, m, nused) ∧ n < len ∧ len ≤ nused ∧ m + nused ≤ # zbrar → scan(zbrar[m + n].key, zbrar, m, len) = m + n A User Theorem
scan-given-0 ⊦ sorted(zbrar, 0, nused) ∧ n < len ∧ len ≤ nused ∧ nused ≤ # zbrar → scan(zbrar[n].key, zbrar, 0, len) = n A User Theorem
scan-last ⊦ ¬ zbrar[m].key < key → scan(key, zbrar, m, n) = m A User Theorem
scan-le ⊦ scan(key, zbrar, m, len) < m + len → ¬ zbrar[scan(key, zbrar, m, len)].key < key A User Theorem
scan-le-0 ⊦ scan(key, zbrar, 0, len) < len → ¬ zbrar[scan(key, zbrar, 0, len)].key < key A User Theorem
scan-lt ⊦ m + n < scan(key, zbrar, m, len) → zbrar[m + n].key < key A User Theorem
scan-lt-0 ⊦ n < scan(key, zbrar, 0, len) ∧ n ≠ len → zbrar[n].key < key A User Theorem
scan-max ⊦ ¬ m + len < scan(key, zbrar, m, len) A User Theorem
scan-max-0 ⊦ ¬ len < scan(key, zbrar, 0, len) A User Theorem
scan-min ⊦ m ≤ scan(key, zbrar, m, len) A User Theorem
scan-min-eq ⊦ m0 = scan(key, zbrar, m1, len) → m1 ≤ m0 A User Theorem
scan-strongnused ≤ # zbrar, sorted(zbrar, 0, nused), n = scan(key, zbrar, 0, nused) ⊦ n ≤ nused ∧ (n < nused → key ≤ zbrar[n].key) ∧ (∀ n0. n0 < n → zbrar[n0].key < key) ∧ (∀ n1. n < n1 ∧ n1 < nused → key < zbrar[n1].key) A User Theorem
size-shl ⊦ # shl(zbrar, n, m) = # zbrar A User Theorem
size-shr ⊦ # shr(zbrar, n, m) = # zbrar A User Theorem