---

Step * 2 of Lemma divides-iff-gcd


1. x : ℤ
2. y : ℤ
3. gcd(y;x) = x ∈ ℤ
⊢ x | y
BY
{ (D (-1) THEN InstLemma `gcd_is_divisor_1` [⌜y⌝;⌜x⌝]⋅ THEN Auto) }

---

Latex:

---

Latex:

1.  x  :  \mBbbZ{}
2.  y  :  \mBbbZ{}
3.  gcd(y;x)  =  x
\mvdash{}  x  |  y


By

---

Latex:
(D  (-1)  THEN  InstLemma  `gcd\_is\_divisor\_1`  [\mkleeneopen{}y\mkleeneclose{};\mkleeneopen{}x\mkleeneclose{}]\mcdot{}  THEN  Auto)

---

Home Index