Step
*
1
1
of Lemma
geo-add-length-le-implies-eq
1. e : BasicGeometry
2. x : Length
3. a : Point
4. b : Point
5. x + |ab| ≤ x
6. x + |ab| ≤ x + 0
7. |ab| ≤ 0
⊢ a ≡ b
BY
{ (RWO "geo-le-zero" (-1) THENA Auto) }
1
1. e : BasicGeometry
2. x : Length
3. a : Point
4. b : Point
5. x + |ab| ≤ x
6. x + |ab| ≤ x + 0
7. |ab| = 0 ∈ Length
⊢ a ≡ b
Latex:
Latex:
1. e : BasicGeometry
2. x : Length
3. a : Point
4. b : Point
5. x + |ab| \mleq{} x
6. x + |ab| \mleq{} x + 0
7. |ab| \mleq{} 0
\mvdash{} a \mequiv{} b
By
Latex:
(RWO "geo-le-zero" (-1) THENA Auto)
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