Nuprl Lemma : eq_to_le
∀[i,j:ℤ].  i ≤ j supposing i = j ∈ ℤ
Proof
Definitions occuring in Statement : 
uimplies: b supposing a
, 
uall: ∀[x:A]. B[x]
, 
le: A ≤ B
, 
int: ℤ
, 
equal: s = t ∈ T
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
uimplies: b supposing a
, 
all: ∀x:A. B[x]
, 
decidable: Dec(P)
, 
or: P ∨ Q
, 
satisfiable_int_formula: satisfiable_int_formula(fmla)
, 
exists: ∃x:A. B[x]
, 
false: False
, 
implies: P 
⇒ Q
, 
not: ¬A
, 
top: Top
, 
and: P ∧ Q
, 
prop: ℙ
, 
le: A ≤ B
Lemmas referenced : 
equal_wf, 
less_than'_wf, 
int_formula_prop_wf, 
int_formula_prop_eq_lemma, 
int_term_value_var_lemma, 
int_formula_prop_le_lemma, 
int_formula_prop_not_lemma, 
int_formula_prop_and_lemma, 
intformeq_wf, 
itermVar_wf, 
intformle_wf, 
intformnot_wf, 
intformand_wf, 
satisfiable-full-omega-tt, 
decidable__le
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
isect_memberFormation, 
introduction, 
cut, 
lemma_by_obid, 
sqequalHypSubstitution, 
dependent_functionElimination, 
thin, 
hypothesisEquality, 
hypothesis, 
unionElimination, 
isectElimination, 
natural_numberEquality, 
independent_isectElimination, 
dependent_pairFormation, 
lambdaEquality, 
int_eqEquality, 
intEquality, 
isect_memberEquality, 
voidElimination, 
voidEquality, 
sqequalRule, 
independent_pairFormation, 
computeAll, 
productElimination, 
independent_pairEquality, 
because_Cache, 
axiomEquality, 
equalityTransitivity, 
equalitySymmetry
Latex:
\mforall{}[i,j:\mBbbZ{}].    i  \mleq{}  j  supposing  i  =  j
Date html generated:
2016_05_14-AM-07_20_18
Last ObjectModification:
2016_01_07-PM-03_59_46
Theory : int_2
Home
Index