Nuprl Lemma : decidable__true
Dec(True)
Proof
Definitions occuring in Statement :
decidable: Dec(P),
true: True
Definitions unfolded in proof :
decidable: Dec(P),
or: P ∨ Q,
true: True,
member: t ∈ T,
prop: ℙ,
uall: ∀[x:A]. B[x]
Lemmas referenced :
true_wf,
not_wf
Rules used in proof :
sqequalSubstitution,
sqequalTransitivity,
computationStep,
sqequalReflexivity,
inlFormation,
natural_numberEquality,
cut,
lemma_by_obid,
sqequalHypSubstitution,
isectElimination,
thin,
hypothesis
Latex:
Dec(True)
Date html generated:
2016_05_13-PM-03_09_10
Last ObjectModification:
2016_01_06-PM-05_27_10
Theory : core_2
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