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Theorem base for Specification int-gcd

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:
gcd-zero ⊦ gcd(0, 0) = 0 An Axiom
divides ⊦ i | j ↔ (∃ i0. i * i0 = j) An Axiom
gcd-div1 ⊦ gcd(i, j) | i An Axiom
gcd-div2 ⊦ gcd(i, j) | j An Axiom
gcd-max ⊦ i0 | i ∧ i0 | j ∧ (i ≠ 0 ∨ j ≠ 0) → i0 ≤ gcd(i, j) An Axiom
prime-def ⊦ prime(j) ↔ 2 ≤ j ∧ (∀ i. 1 < i ∧ i < j → ¬ i | j) An Axiom
max_prime_divisor-def ⊦ j | i ∧ prime(j) ∧ j < i ∧ (∀ j0. j < j0 ∧ j0 < i ∧ prime(j0) → ¬ j0 | i) → max_prime_divisor(i) = j An Axiom
abs-gcd-not-less ⊦ j ≠ 0 → (abs(i) < gcd(i, j) ↔ i = 0) A User Theorem
abs-not-less ⊦ j ≠ 0 → ¬ abs(j) < gcd(i, j) A User Theorem
case-102 ≤ i, i < 10 ⊦ i = 2 ∨ i = 3 ∨ i = 4 ∨ i = 5 ∨ i = 6 ∨ i = 7 ∨ i = 8 ∨ i = 9 A User Theorem
case-2010 ≤ i, i < 20 ⊦ i = 10 ∨ i = 11 ∨ i = 12 ∨ i = 13 ∨ i = 14 ∨ i = 15 ∨ i = 16 ∨ i = 17 ∨ i = 18 ∨ i = 19 A User Theorem
case-3020 ≤ i, i < 30 ⊦ i = 20 ∨ i = 21 ∨ i = 22 ∨ i = 23 ∨ i = 24 ∨ i = 25 ∨ i = 26 ∨ i = 27 ∨ i = 28 ∨ i = 29 A User Theorem
case-4030 ≤ i, i < 40 ⊦ i = 30 ∨ i = 31 ∨ i = 32 ∨ i = 33 ∨ i = 34 ∨ i = 35 ∨ i = 36 ∨ i = 37 ∨ i = 38 ∨ i = 39 A User Theorem
coprime-divides ⊦ gcd(i, j) = 1 ∧ i * i0 = j * j0 → i | j0 A User Theorem
coprime-divides-01 ⊦ gcd(i, j) = 1 ∧ i | j * j0 → i | j0 A User Theorem
coprime-divides-02 ⊦ gcd(i, j) = 1 ∧ ¬ i | j0 → ¬ i | j * j0 A User Theorem
coprime-divides-03 ⊦ gcd(i, j) = 1 ∧ ¬ i | j0 → ¬ i | j0 * j A User Theorem
div-abs ⊦ i | abs(i) * j A User Theorem
div-abs-01 ⊦ i | abs(j) → i | j A User Theorem
div-abs-02 ⊦ i | abs(j) ↔ i | j A User Theorem
div-abs-03 ⊦ i | abs(i) A User Theorem
div-abs-04 ⊦ abs(i) | i A User Theorem
div-div ⊦ i | j ∧ j | i ∧ i ≤ 0 ∧ j ≤ 0 → (i = j ↔ true) A User Theorem
div-div-01 ⊦ i | j ∧ j | i ∧ 0 ≤ i ∧ 0 ≤ j → (i = j ↔ true) A User Theorem
div-eq ⊦ j | i ∧ j ≠ 0 → (i / j = i0 ↔ i = i0 * j) A User Theorem
div-eq-one ⊦ i | j ∧ i ≠ 0 → (j / i = 1 ↔ j = i) A User Theorem
div-gcd-is-neg ⊦ i0 < 0 → i0 / gcd(i, i0) ≤ 0 A User Theorem
div-gcd-is-neg-01 ⊦ i0 < 0 → ¬ 0 < i0 / gcd(i, i0) A User Theorem
div-gcd-is-neg-01-01 ⊦ i0 < 0 → ¬ 0 ≤ i0 / gcd(i, i0) A User Theorem
div-gcd-neg-not-zero ⊦ i0 < 0 → i0 / gcd(i, i0) ≠ 0 A User Theorem
div-gcd-not-neg ⊦ 0 < i → ¬ i / gcd(i, i0) ≤ 0 A User Theorem
div-gcd-one ⊦ i / gcd(i, 1) = i A User Theorem
div-gcd-zero ⊦ i ≠ 0 → i / gcd(i, i0) ≠ 0 A User Theorem
div-mod ⊦ 0 < j ∧ 0 ≤ i ∧ 0 ≤ i0 → (j | i - i0 ↔ i % j = i0 % j) A User Theorem
div-mod-01 ⊦ 0 < j ∧ 0 ≤ i0 ∧ i0 ≤ i → (j | i - i0 ↔ i % j = i0 % j) A User Theorem
div-mod-zero ⊦ j | i ∧ i ≠ 0 → i % j = 0 A User Theorem
div-mod-zero-01 ⊦ i % j = 0 ∧ j ≠ 0 → j | i A User Theorem
div-mult ⊦ i | i * j A User Theorem
div-mult-01 ⊦ i ≠ 0 → (i * i0 | i * i1 ↔ i0 | i1) A User Theorem
div-mult-div ⊦ 0 < j ∧ 1 < i → ¬ i * j | j A User Theorem
div-mult-shift ⊦ j | i ∧ j ≠ 0 → i / j * j0 = (i * j0) / j A User Theorem
div-neg ⊦ i | ~ j ↔ i | j A User Theorem
div-not-ls ⊦ i < j ∧ 0 < i → ¬ j | i A User Theorem
div-one ⊦ 1 | i A User Theorem
div-one-neg-pos ⊦ 0 < i → (i | ~1 ↔ i = 1) A User Theorem
div-one-one ⊦ i | 1 ↔ i = 1 ∨ i = ~1 A User Theorem
div-one-one-neg ⊦ i | ~1 ↔ i = 1 ∨ i = ~1 A User Theorem
div-one-pos ⊦ 0 < i → (i | 1 ↔ i = 1) A User Theorem
div-zero ⊦ i | i A User Theorem
div-zero-01 ⊦ i | 0 A User Theorem
div-zero-zero ⊦ 0 | i ↔ i = 0 A User Theorem
divides-abs ⊦ abs(i) | abs(j) ↔ i | j A User Theorem
divides-abs-01 ⊦ abs(i) | j ↔ i | j A User Theorem
divides-abs-02 ⊦ i | abs(j) * j0 ↔ i | j * j0 A User Theorem
divides-add ⊦ i | j → (i | j + j0 ↔ i | j0) A User Theorem
divides-minus ⊦ j | i - i0 ↔ j | i0 - i A User Theorem
divides-mod ⊦ i ≠ 0 → (i | j ↔ j % i = 0) A User Theorem
divides-mone ⊦ ~1 | j A User Theorem
divides-mult ⊦ j ≠ 0 → (i * j | j * i0 ↔ i | i0) A User Theorem
divides-mult-01 ⊦ i | j → i | j * j0 A User Theorem
divides-mult-02 ⊦ i | j ∧ i0 | j0 → i * i0 | j * j0 A User Theorem
divides-mult-add ⊦ i | i * j + j0 ↔ i | j0 A User Theorem
divides-mult-sub ⊦ i | i * j - j0 ↔ i | j0 A User Theorem
divides-neg ⊦ ~ i | j ↔ i | j A User Theorem
divides-prime ⊦ prime(j) → (i | j ↔ abs(i) = j ∨ abs(i) = 1) A User Theorem
exgcd-div ⊦ ∃ i0. i / gcd(i, j) = i0 ∧ gcd(i, j) * i0 = i A User Theorem
gcd-abs ⊦ abs(gcd(i, j)) = gcd(i, j) A User Theorem
gcd-abs-rew ⊦ gcd(i, abs(j)) = gcd(i, j) A User Theorem
gcd-abs-rew-01 ⊦ gcd(abs(i), j) = gcd(i, j) A User Theorem
gcd-abs-rew-02 ⊦ gcd(i, j) = gcd(abs(i), abs(j)) A User Theorem
gcd-add ⊦ 0 < i ∧ 0 < j → gcd(i + j, j) = gcd(i, j) A User Theorem
gcd-com ⊦ gcd(i, j) = gcd(j, i) A User Theorem
gcd-conq-one0 ≤ j, 0 ≤ i, gcd(i, j) = 1 ⊦ ∃ i0. 0 ≤ i0 ∧ j | i * i0 - 1 A User Theorem
gcd-conq-one-01gcd(i, j) = 1 ⊦ ∃ i0. j | i * i0 - 1 A User Theorem
gcd-div-eq ⊦ i ≠ 0 → (i / gcd(i, j) = i0 ↔ i = i0 * gcd(i, j)) A User Theorem
gcd-div-gcd ⊦ i ≠ 0 → gcd(i / gcd(i, j), j / gcd(i, j)) = 1 A User Theorem
gcd-div-gcd-pos0 < i, 0 < j ⊦ gcd(i / gcd(i, j), j / gcd(i, j)) = 1 A User Theorem
gcd-div-mult ⊦ i ≠ 0 ∧ j ≠ 0 → i / gcd(i, j) * gcd(i, j) = i A User Theorem
gcd-div-mult-shift ⊦ i ≠ 0 → i / gcd(i, j) * j0 = (i * j0) / gcd(i, j) A User Theorem
gcd-div-rest ⊦ abs(j0) < gcd(i, j) → (i = i1 * gcd(i, j) + j0 ↔ i = i1 * gcd(i, j) ∧ j0 = 0) A User Theorem
gcd-div-shift ⊦ i0 ≠ 0 → (i0 * j) / gcd(i0, j0) = i0 / gcd(i0, j0) * j A User Theorem
gcd-divides ⊦ gcd(i, j) | i * i0 A User Theorem
gcd-divides-01 ⊦ j0 | gcd(i, j) → j0 | j A User Theorem
gcd-divides-both ⊦ j | gcd(i, i0) → j | i ∧ j | i0 A User Theorem
gcd-divides-both-h0 ≤ i, i < j, j0 | gcd(i, j) ⊦ j0 | j ∧ j0 | i A User Theorem
gcd-ge-one ⊦ i ≠ 0 → 1 ≤ gcd(i, j) A User Theorem
gcd-less ⊦ i1 | i ∧ i1 | j ∧ 0 ≠ i → i1 ≤ gcd(i, j) A User Theorem
gcd-less-eq-zero ⊦ gcd(i, j) ≤ 0 ↔ gcd(i, j) = 0 A User Theorem
gcd-max-propi0 | i, i0 | j ⊦ i0 | gcd(i, j) A User Theorem
gcd-mod-one1 < j, 1 < i, gcd(i, j) = 1 ⊦ ∃ i0. (i * i0) % j = 1 A User Theorem
gcd-mod-one-011 < j, 1 < i, gcd(i, j) = 1 ⊦ ∃ i0. (i * i0) % j = 1 ∧ 0 < i0 A User Theorem
gcd-mult ⊦ gcd(i * i1, j * i1) = gcd(i, j) * abs(i1) A User Theorem
gcd-mult-01 ⊦ gcd(i, i * j) = abs(i) A User Theorem
gcd-mult-pos ⊦ 0 < i1 ∧ 0 < i ∧ 0 ≤ j → gcd(i * i1, j * i1) = gcd(i, j) * i1 A User Theorem
gcd-mult-pos-01 ⊦ 0 < i1 ∧ 0 < i ∧ 0 ≤ j → gcd(i1 * i, i1 * j) = gcd(i, j) * i1 A User Theorem
gcd-neg ⊦ gcd(~ i, j) = gcd(i, j) A User Theorem
gcd-negone-eq ⊦ ~1 = j2 / gcd(i2, j2) → gcd(i2, j2) = ~ j2 A User Theorem
gcd-nls ⊦ i ≠ 0 → ¬ abs(i) < gcd(i, j) A User Theorem
gcd-nls-01 ⊦ i ≠ 0 → ¬ abs(i) < gcd(abs(i), j) A User Theorem
gcd-nls-zero ⊦ 0 < i → ¬ i / gcd(i, j) < 0 A User Theorem
gcd-one ⊦ gcd(i, j) = 1 ↔ ¬(∃ i1. i1 > 1 ∧ i1 | i ∧ i1 | j) A User Theorem
gcd-one-01 ⊦ gcd(i, 1) = 1 A User Theorem
gcd-one-eq ⊦ j2 / gcd(i2, j2) = 1 → gcd(i2, j2) = j2 A User Theorem
gcd-one-eq-01 ⊦ i ≠ 0 → (abs(i) / gcd(i, j) = 1 ↔ gcd(i, j) = abs(i)) A User Theorem
gcd-one-eq-02 ⊦ j ≠ 0 → (abs(i) / gcd(i, j) = 1 ↔ gcd(i, j) = abs(i)) A User Theorem
gcd-one-prime ⊦ prime(i) ∧ ¬ i | j → gcd(i, j) = 1 A User Theorem
gcd-pos ⊦ 0 ≤ gcd(i, j) A User Theorem
gcd-prime ⊦ prime(j) ∧ 1 < i ∧ i < j → gcd(i, j) = 1 A User Theorem
gcd-primes ⊦ prime(i) ∧ prime(j) ∧ i ≠ j → gcd(i, j) = 1 A User Theorem
gcd-rec ⊦ j ≠ 0 → gcd(i, j) = gcd(abs(j), abs(i) % abs(j)) A User Theorem
gcd-rec-pos ⊦ 0 < j ∧ 0 ≤ i → gcd(i, j) = gcd(j, i % j) A User Theorem
gcd-rec-sub ⊦ 0 < i ∧ i < j → gcd(i, j) = gcd(i, j - i) A User Theorem
gcd-rec-sub-01 ⊦ gcd(i, j) = gcd(i, j - i) A User Theorem
gcd-rec-sub-02 ⊦ 0 < i ∧ i < j → gcd(i, j) = gcd(j, j - i) A User Theorem
gcd-rec-sub-03 ⊦ gcd(i, j) = gcd(j, j - i) A User Theorem
gcd-same ⊦ i ≠ 0 → gcd(i, i) = abs(i) A User Theorem
gcd-same-01 ⊦ 0 < j → gcd(j, j) = j A User Theorem
gcd-same-02 ⊦ gcd(abs(i), abs(i)) = abs(i) A User Theorem
gcd-zero-02 ⊦ ¬ gcd(i, j) < 0 A User Theorem
gcd-zero-03 ⊦ i ≠ 0 → gcd(i, 0) = abs(i) A User Theorem
gcd-zero-04 ⊦ gcd(i, 0) = abs(i) A User Theorem
gcd-zero-05 ⊦ gcd(i0, j0) + gcd(i, j) = 0 ↔ gcd(i0, j0) = 0 ∧ gcd(i, j) = 0 A User Theorem
gcd-zero-zero ⊦ gcd(i, j) = 0 ↔ i = 0 ∧ j = 0 A User Theorem
gcdex ⊦ ∃ i0, j0. gcd(i, j) = i * i0 + j * j0 A User Theorem
gcdex-not-uniquegcd(i, j) = i * i0 + j * j0 ⊦ ∀ i1. gcd(i, j) = i * (i0 - i1 * j) + j * (j0 + i1 * i) A User Theorem
gcdex-posj ≠ 0 ⊦ ∃ i0, j0. gcd(i, j) = i * i0 + j * j0 ∧ 0 ≤ i0 A User Theorem
gcdex-smallest-posj ≠ 0 ⊦ ∃ i0, j0. gcd(i, j) = i * i0 + j * j0 ∧ 0 ≤ i0 ∧ (∀ i1. 0 ≤ i1 ∧ i1 < i0 → ¬(∃ j1. gcd(i, j) = i * i1 + j * j1)) A User Theorem
gcdhex0 ≤ i, 0 ≤ j, j ≤ i ⊦ ∃ i0, j0. gcd(i, j) = i * i0 + j * j0 A User Theorem
max_prime_divisor-abs ⊦ ¬ prime(i) ∧ 2 ≤ i → abs(i / max_prime_divisor(i)) = i / max_prime_divisor(i) A User Theorem
max_prime_divisor-abs-01 ⊦ ¬ prime(i) ∧ 2 ≤ i → abs(max_prime_divisor(i)) = max_prime_divisor(i) A User Theorem
max_prime_divisor-divides ⊦ ¬ prime(i) ∧ 2 ≤ i → max_prime_divisor(i) | i A User Theorem
max_prime_divisor-divides-01 ⊦ ¬ prime(i) ∧ 2 ≤ i → i % max_prime_divisor(i) = 0 A User Theorem
max_prime_divisor-divides-02 ⊦ ¬ j | i ∧ prime(j) ∧ ¬ prime(i) ∧ 2 ≤ i → ¬ j | i / max_prime_divisor(i) A User Theorem
max_prime_divisor-divides-03 ⊦ ¬ prime(i) ∧ 2 ≤ i ∧ prime(j) ∧ j | i ∧ j ≠ max_prime_divisor(i) → j | i / max_prime_divisor(i) A User Theorem
max_prime_divisor-ge2 ⊦ ¬ prime(i) ∧ 2 ≤ i → 2 ≤ i / max_prime_divisor(i) A User Theorem
max_prime_divisor-nle ⊦ ¬ prime(i) ∧ 2 ≤ i → ¬ i ≤ max_prime_divisor(i) A User Theorem
max_prime_divisor-nle-01 ⊦ ¬ prime(i) ∧ 2 ≤ i → ¬ i ≤ i / max_prime_divisor(i) A User Theorem
max_prime_divisor-nle-zero ⊦ ¬ prime(i) ∧ 2 ≤ i → ¬ max_prime_divisor(i) ≤ 0 A User Theorem
max_prime_divisor-nle-zero-01 ⊦ ¬ prime(i) ∧ 2 ≤ i → ¬ i / max_prime_divisor(i) ≤ 0 A User Theorem
max_prime_divisor-nls ⊦ ¬ prime(i) ∧ 2 ≤ i → ¬ i < i / max_prime_divisor(i) A User Theorem
max_prime_divisor-nls-01 ⊦ ¬ prime(i) ∧ 2 ≤ i → ¬ i < max_prime_divisor(i) A User Theorem
max_prime_divisor-nls-02 ⊦ ¬ prime(i / max_prime_divisor(i)) ∧ ¬ prime(i) ∧ 2 ≤ i → ¬ max_prime_divisor(i) < max_prime_divisor(i / max_prime_divisor(i)) A User Theorem
max_prime_divisor-nls-03 ⊦ prime(i / max_prime_divisor(i)) ∧ ¬ prime(i) ∧ 2 ≤ i → ¬ max_prime_divisor(i) < i / max_prime_divisor(i) A User Theorem
max_prime_divisor-nls-zero ⊦ ¬ prime(i) ∧ 2 ≤ i → ¬ max_prime_divisor(i) < 0 A User Theorem
max_prime_divisor-not-zero ⊦ ¬ prime(i) ∧ 2 ≤ i → max_prime_divisor(i) ≠ 0 A User Theorem
max_prime_divisor-prime ⊦ ¬ prime(i) ∧ 2 ≤ i → prime(max_prime_divisor(i)) A User Theorem
mod-gcd ⊦ i ≠ 0 → i % gcd(i, j) = 0 A User Theorem
mod-gcd-01 ⊦ j ≠ 0 → i % gcd(i, j) = 0 A User Theorem
not-less-gcd ⊦ 0 < i → ¬ i < gcd(i, j) A User Theorem
num-gcd-pos ⊦ 0 < j ∧ j < i → gcd((* i), (* j)) = gcd(j, i % j) A User Theorem
prime-11 ⊦ prime(11) A User Theorem
prime-1259 ⊦ prime(1259) A User Theorem
prime-13 ⊦ prime(13) A User Theorem
prime-163 ⊦ prime(163) A User Theorem
prime-23 ⊦ prime(23) A User Theorem
prime-317 ⊦ prime(317) A User Theorem
prime-43 ⊦ prime(43) A User Theorem
prime-5 ⊦ prime(5) A User Theorem
prime-631 ⊦ prime(631) A User Theorem
prime-7 ⊦ prime(7) A User Theorem
prime-83 ⊦ prime(83) A User Theorem
prime-abs ⊦ prime(j) → abs(j) = j A User Theorem
prime-def-mod ⊦ 1 < j → (prime(j) ↔ (∀ i. 1 < i ∧ i * i ≤ j → j % i ≠ 0)) A User Theorem
prime-def-prime ⊦ 1 < i → (prime(i) ↔ (∀ j. prime(j) ∧ j * j ≤ i → ¬ j | i)) A User Theorem
prime-divides ⊦ prime(i) → (i | j * j0 ↔ i | j ∨ i | j0) A User Theorem
prime-divides-01 ⊦ prime(i) ∧ j0 | j ∧ j0 < i ∧ i | j ∧ 0 < j0 → i | j / j0 A User Theorem
prime-divides-one ⊦ prime(i) → ¬ i | 1 A User Theorem
prime-ex-max ⊦ ¬ prime(i) ∧ 2 ≤ i → (∃ j. prime(j) ∧ j | i ∧ j < i ∧ (∀ j0. j < j0 ∧ j0 < i ∧ prime(j0) → ¬ j0 | i)) A User Theorem
prime-le-2 ⊦ prime(i) → (i ≤ 2 ↔ i = 2) A User Theorem
prime-mult-not ⊦ 1 < i ∧ 1 < j → ¬ prime(i * j) A User Theorem
prime-not-four ⊦ ¬ prime(4) A User Theorem
prime-not-neg ⊦ j < 0 → ¬ prime(j) A User Theorem
prime-not-neg-01 ⊦ j ≤ 0 → ¬ prime(j) A User Theorem
prime-not-odd ⊦ ¬ odd(j) → (prime(j) ↔ j = 2) A User Theorem
prime-odd ⊦ prime(j) ∧ j ≠ 2 → j % 2 = 1 A User Theorem
prime-odd-01 ⊦ prime(j) ∧ j ≠ 2 → (j - 1) % 2 = 0 A User Theorem
prime-one ⊦ i ≤ 1 → ¬ prime(i) A User Theorem
prime-small ⊦ j < 2 → ¬ prime(j) A User Theorem
prime-three ⊦ prime(3) A User Theorem
prime-two ⊦ prime(2 * j) ↔ j = 1 A User Theorem
prime-two-01 ⊦ prime(2) A User Theorem
square-neq-anyj ≠ 0 ∨ j0 ≠ 0, j * j = i * j0 * j0 ⊦ ∃ i0. i = i0 * i0 A User Theorem
square-neq-any-pos0 < i, j ≠ 0 ∨ j0 ≠ 0, j * j = i * j0 * j0 ⊦ ∃ i0. i = i0 * i0 A User Theorem
square-neq-any-pos-010 < i, 0 < j, 0 < j0, j * j = i * j0 * j0 ⊦ ∃ i0. i = i0 * i0 A User Theorem
square-neq-any-pos-020 < i, 0 < j, 0 < j0, gcd(j, j0) = 1, j * j = i * j0 * j0 ⊦ ∃ i0. i = i0 * i0 A User Theorem
square-neq-pos ⊦ prime(i) ∧ 0 < j ∧ 0 ≤ j0 → j * j ≠ i * j0 * j0 A User Theorem
square-neq-pos-h ⊦ prime(i) ∧ gcd(j, j0) = 1 ∧ 0 < j ∧ 0 ≤ j0 → j * j ≠ i * j0 * j0 A User Theorem
square-neq-prime ⊦ prime(i) ∧ (j ≠ 0 ∨ j0 ≠ 0) → j * j ≠ i * j0 * j0 A User Theorem