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Arithmetic theorems
pine0
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Metamath Proof Explorer
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Theorem
pine0
Description:
_pi
is nonzero.
(Contributed by
SN
, 25-Apr-2025)
Ref
Expression
Assertion
pine0
⊢
π
≠
0
Proof
Step
Hyp
Ref
Expression
1
pire
⊢
π
∈
ℝ
2
pipos
⊢
0
<
π
3
1
2
gt0ne0ii
⊢
π
≠
0