Step
*
of Lemma
geo-line-eq-geoline
∀[e:EuclideanPlane]. ∀[P:LINE]. ∀[l:Line]. uiff(fst(l) I P ∧ fst(snd(l)) I P;l = P ∈ LINE)
BY
{ (Intros THEN (RepeatFor 2 (D 0) THENA (Auto THEN SubsumeC ⌜Line⌝⋅ THEN Auto))) }
1
1. e : EuclideanPlane
2. P : LINE
3. l : Line
4. fst(l) I P ∧ fst(snd(l)) I P
⊢ l = P ∈ LINE
2
1. e : EuclideanPlane
2. P : LINE
3. l : Line
4. l = P ∈ LINE
⊢ fst(l) I P ∧ fst(snd(l)) I P
Latex:
Latex:
\mforall{}[e:EuclideanPlane]. \mforall{}[P:LINE]. \mforall{}[l:Line]. uiff(fst(l) I P \mwedge{} fst(snd(l)) I P;l = P)
By
Latex:
(Intros THEN (RepeatFor 2 (D 0) THENA (Auto THEN SubsumeC \mkleeneopen{}Line\mkleeneclose{}\mcdot{} THEN Auto)))
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