Nuprl Lemma : alg_minus_wf
∀A:Type. ∀a:algebra_sig{i:l}(A). (a.minus ∈ a.car ⟶ a.car)
Proof
Definitions occuring in Statement :
alg_minus: a.minus,
alg_car: a.car,
algebra_sig: algebra_sig{i:l}(A),
all: ∀x:A. B[x],
member: t ∈ T,
function: x:A ⟶ B[x],
universe: Type
Definitions unfolded in proof :
all: ∀x:A. B[x],
member: t ∈ T,
algebra_sig: algebra_sig{i:l}(A),
alg_minus: a.minus,
alg_car: a.car,
pi1: fst(t),
pi2: snd(t)
Lemmas referenced :
algebra_sig_wf
Rules used in proof :
sqequalSubstitution,
sqequalTransitivity,
computationStep,
sqequalReflexivity,
lambdaFormation,
cut,
sqequalHypSubstitution,
productElimination,
thin,
sqequalRule,
hypothesisEquality,
hypothesis,
lemma_by_obid,
dependent_functionElimination,
universeEquality
Latex:
\mforall{}A:Type. \mforall{}a:algebra\_sig\{i:l\}(A). (a.minus \mmember{} a.car {}\mrightarrow{} a.car)
Date html generated:
2016_05_16-AM-07_26_04
Last ObjectModification:
2015_12_28-PM-05_08_15
Theory : algebras_1
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