Nuprl Lemma : perm_properties
∀T:Type. ∀p:Perm(T).  InvFuns(T;T;p.f;p.b)
Proof
Definitions occuring in Statement : 
perm: Perm(T)
, 
perm_b: p.b
, 
perm_f: p.f
, 
inv_funs: InvFuns(A;B;f;g)
, 
all: ∀x:A. B[x]
, 
universe: Type
Definitions unfolded in proof : 
all: ∀x:A. B[x]
, 
perm: Perm(T)
, 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
sq_stable: SqStable(P)
, 
implies: P 
⇒ Q
, 
squash: ↓T
Lemmas referenced : 
perm_wf, 
perm_b_wf, 
perm_f_wf, 
sq_stable__inv_funs
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
lambdaFormation, 
sqequalHypSubstitution, 
setElimination, 
thin, 
rename, 
cut, 
lemma_by_obid, 
isectElimination, 
hypothesisEquality, 
because_Cache, 
dependent_functionElimination, 
hypothesis, 
independent_functionElimination, 
introduction, 
sqequalRule, 
imageMemberEquality, 
baseClosed, 
imageElimination, 
universeEquality
Latex:
\mforall{}T:Type.  \mforall{}p:Perm(T).    InvFuns(T;T;p.f;p.b)
Date html generated:
2016_05_16-AM-07_28_26
Last ObjectModification:
2016_01_16-PM-10_06_25
Theory : perms_1
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