Step
*
1
1
2
of Lemma
eu-cong-angle-symm
1. e : EuclideanPlane@i'
2. a : Point@i
3. b : Point@i
4. c : Point@i
5. ¬(a = b ∈ Point)
6. ¬(c = b ∈ Point)
⊢ (¬(c = b ∈ Point))
∧ (¬(c = b ∈ Point))
∧ (¬(a = b ∈ Point))
∧ (∃a',c',x',z':Point. (b_a_a' ∧ b_c_c' ∧ b_c_x' ∧ b_a_z' ∧ ba'=bx' ∧ bc'=bz' ∧ a'c'=x'z'))
BY
{ D 0 }
1
1. e : EuclideanPlane@i'
2. a : Point@i
3. b : Point@i
4. c : Point@i
5. ¬(a = b ∈ Point)
6. ¬(c = b ∈ Point)
⊢ ¬(c = b ∈ Point)
2
1. e : EuclideanPlane@i'
2. a : Point@i
3. b : Point@i
4. c : Point@i
5. ¬(a = b ∈ Point)
6. ¬(c = b ∈ Point)
⊢ (¬(c = b ∈ Point))
∧ (¬(a = b ∈ Point))
∧ (∃a',c',x',z':Point. (b_a_a' ∧ b_c_c' ∧ b_c_x' ∧ b_a_z' ∧ ba'=bx' ∧ bc'=bz' ∧ a'c'=x'z'))
Latex:
Latex:
1. e : EuclideanPlane@i'
2. a : Point@i
3. b : Point@i
4. c : Point@i
5. \mneg{}(a = b)
6. \mneg{}(c = b)
\mvdash{} (\mneg{}(c = b))
\mwedge{} (\mneg{}(c = b))
\mwedge{} (\mneg{}(a = b))
\mwedge{} (\mexists{}a',c',x',z':Point. (b\_a\_a' \mwedge{} b\_c\_c' \mwedge{} b\_c\_x' \mwedge{} b\_a\_z' \mwedge{} ba'=bx' \mwedge{} bc'=bz' \mwedge{} a'c'=x'z'))
By
Latex:
D 0
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