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SUPPLEMENTARY MATERIAL (USERS' MATHBOXES)
Mathbox for Jiamin Zhao
Cross product and scalar triple product in RR^3
2ne3
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1elfz13
Metamath Proof Explorer
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Unicode
Theorem
2ne3
Description:
2
is not equal to
3
.
(Contributed by
Jiamin Zhao
, 1-Aug-2026)
Ref
Expression
Assertion
2ne3
⊢
2
≠
3
Proof
Step
Hyp
Ref
Expression
1
2re
⊢
2
∈
ℝ
2
2lt3
⊢
2
<
3
3
1
2
ltneii
⊢
2
≠
3