Nuprl Lemma : atom2-deq_wf
Atom2Deq ∈ EqDecider(Atom2)
Proof
Definitions occuring in Statement :
atom2-deq: Atom2Deq,
deq: EqDecider(T),
atom: Atom$n,
member: t ∈ T
Definitions unfolded in proof :
deq: EqDecider(T),
atom2-deq: Atom2Deq,
member: t ∈ T,
uall: ∀[x:A]. B[x],
all: ∀x:A. B[x],
iff: P ⇐⇒ Q,
and: P ∧ Q,
implies: P ⇒ Q,
uiff: uiff(P;Q),
rev_uimplies: rev_uimplies(P;Q),
uimplies: b supposing a,
prop: ℙ,
rev_implies: P ⇐ Q,
so_lambda: λ2x.t[x],
so_apply: x[s]
Lemmas referenced :
atom2-deq-aux,
eq_atom_wf2,
assert_of_eq_atom2,
equal_wf,
assert_wf,
all_wf,
iff_wf
Rules used in proof :
sqequalSubstitution,
sqequalTransitivity,
computationStep,
sqequalReflexivity,
sqequalRule,
cut,
lemma_by_obid,
dependent_set_memberEquality,
lambdaEquality,
sqequalHypSubstitution,
isectElimination,
thin,
hypothesisEquality,
hypothesis,
atomnEquality,
lambdaFormation,
independent_pairFormation,
productElimination,
independent_isectElimination,
applyEquality
Latex:
Atom2Deq \mmember{} EqDecider(Atom2)
Date html generated:
2016_05_14-PM-03_33_51
Last ObjectModification:
2015_12_26-PM-06_00_51
Theory : decidable!equality
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