Nuprl Lemma : minus_wf
∀[x:ℤ]. (-x ∈ ℤ)
Proof
Definitions occuring in Statement :
uall: ∀[x:A]. B[x],
member: t ∈ T,
minus: -n,
int: ℤ
Definitions unfolded in proof :
uall: ∀[x:A]. B[x],
member: t ∈ T
Rules used in proof :
sqequalSubstitution,
sqequalTransitivity,
computationStep,
sqequalReflexivity,
isect_memberFormation,
introduction,
cut,
minusEquality,
hypothesisEquality,
sqequalHypSubstitution,
hypothesis,
sqequalRule,
axiomEquality,
equalityTransitivity,
equalitySymmetry,
intEquality
Latex:
\mforall{}[x:\mBbbZ{}]. (-x \mmember{} \mBbbZ{})
Date html generated:
2016_05_13-PM-03_07_04
Last ObjectModification:
2016_01_06-PM-05_28_34
Theory : core_2
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