---

Step * of Lemma rcos-shift-half-pi

∀[x:ℝ]. (rcos(x + π/2) = -(rsin(x)))
BY
{ (Auto THEN (RWW "rcos-radd rcos-halfpi rsin-halfpi" 0 THENA Auto) THEN nRNorm 0 THEN Auto) }

---

Latex:

---

Latex:
\mforall{}[x:\mBbbR{}].  (rcos(x  +  \mpi{}/2)  =  -(rsin(x)))


By

---

Latex:
(Auto  THEN  (RWW  "rcos-radd  rcos-halfpi  rsin-halfpi"  0  THENA  Auto)  THEN  nRNorm  0  THEN  Auto)

---

Home Index