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("2"
(hide 2)
(("2"
(rewrite
"vect2_add")
(("2"
(lemma
"vectors_2D.norm_add_le")
(("2"
(inst
-
"vect2(ss) + nnt!1*vect2(vv)"
"nnt!1*vect2(ww)")
(("2"
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(("2"
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"norm(nnt!1 * vect2(ww)) + norm(vect2(ss) + nnt!1 * vect2(vv)) < D")
(("1"
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"vect2(ss) + nnt!1 * vect2(vv) + nnt!1 * vect2(ww) = vect2(ss) + nnt!1 * (vect2(vv) + vect2(ww))")
(("1"
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nil
nil)
("2"
(hide
2)
(("2"
(hide-all-but
1)
(("2"
(grind)
nil
nil))
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nil))
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("2"
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(("1"
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("2"
(hide
2)
(("2"
(hide
2)
(("2"
(rewrite
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(("2"
(case
"abs(nnt!1) = nnt!1")
(("1"
(replace
-1)
(("1"
(div-by
1
"nnt!1")
(("1"
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"del2 / nnt!1 >= delta/(2*nnt!1)")
(("1"
(reveal
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(("1"
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nil
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("2"
(hide
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