---

Step * of Lemma ratreal-ratsub

∀[a,b:ℤ × ℕ+].  (ratreal(ratsub(a;b)) = (ratreal(a) - ratreal(b)))
BY
{ (Intros THEN (Unhide THENA Auto) THEN GenConclTerm ⌜ratsub(a;b)⌝⋅ THEN Auto) }

---

Latex:

---

Latex:
\mforall{}[a,b:\mBbbZ{}  \mtimes{}  \mBbbN{}\msupplus{}].    (ratreal(ratsub(a;b))  =  (ratreal(a)  -  ratreal(b)))


By

---

Latex:
(Intros  THEN  (Unhide  THENA  Auto)  THEN  GenConclTerm  \mkleeneopen{}ratsub(a;b)\mkleeneclose{}\mcdot{}  THEN  Auto)

---

Home Index