Nuprl Lemma : Sierpinski-top_wf
⊤ ∈ ℕ ⟶ 𝔹
Proof
Definitions occuring in Statement : 
Sierpinski-top: ⊤
, 
nat: ℕ
, 
bool: 𝔹
, 
member: t ∈ T
, 
function: x:A ⟶ B[x]
Definitions unfolded in proof : 
Sierpinski-top: ⊤
, 
member: t ∈ T
Lemmas referenced : 
btrue_wf, 
nat_wf
Rules used in proof : 
sqequalSubstitution, 
sqequalRule, 
sqequalReflexivity, 
sqequalTransitivity, 
computationStep, 
lambdaEquality, 
cut, 
lemma_by_obid, 
hypothesis
Latex:
\mtop{}  \mmember{}  \mBbbN{}  {}\mrightarrow{}  \mBbbB{}
Date html generated:
2019_10_31-AM-06_35_19
Last ObjectModification:
2015_12_28-AM-11_21_33
Theory : synthetic!topology
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