Nuprl Lemma : trivial-subterm

[opr:Type]. ∀f:opr. ∀bts:bound-term(opr) List. ∀i:ℕ||bts||.  snd(bts[i]) << mkterm(f;bts)


Proof




Definitions occuring in Statement :  subterm: s << t bound-term: bound-term(opr) mkterm: mkterm(opr;bts) select: L[n] length: ||as|| list: List int_seg: {i..j-} uall: [x:A]. B[x] pi2: snd(t) all: x:A. B[x] natural_number: $n universe: Type
Definitions unfolded in proof :  uall: [x:A]. B[x] all: x:A. B[x] member: t ∈ T int_seg: {i..j-} uimplies: supposing a lelt: i ≤ j < k and: P ∧ Q le: A ≤ B less_than: a < b squash: T decidable: Dec(P) or: P ∨ Q not: ¬A implies:  Q satisfiable_int_formula: satisfiable_int_formula(fmla) exists: x:A. B[x] false: False prop: bound-term: bound-term(opr) pi2: snd(t) immediate-subterm: s < t cand: c∧ B
Lemmas referenced :  immediate-is-subterm select_wf bound-term_wf int_seg_properties decidable__le full-omega-unsat intformand_wf intformnot_wf intformle_wf itermConstant_wf itermVar_wf istype-int int_formula_prop_and_lemma int_formula_prop_not_lemma int_formula_prop_le_lemma int_term_value_constant_lemma int_term_value_var_lemma int_formula_prop_wf decidable__lt length_wf intformless_wf int_formula_prop_less_lemma mkterm_wf term_wf int_seg_wf list_wf istype-universe
Rules used in proof :  sqequalSubstitution sqequalTransitivity computationStep sqequalReflexivity isect_memberFormation_alt lambdaFormation_alt cut introduction extract_by_obid sqequalHypSubstitution isectElimination thin hypothesisEquality dependent_functionElimination hypothesis setElimination rename because_Cache independent_isectElimination productElimination imageElimination natural_numberEquality unionElimination approximateComputation independent_functionElimination dependent_pairFormation_alt lambdaEquality_alt int_eqEquality Error :memTop,  sqequalRule independent_pairFormation universeIsType voidElimination inhabitedIsType equalityIstype equalityTransitivity equalitySymmetry productIsType instantiate universeEquality

Latex:
\mforall{}[opr:Type].  \mforall{}f:opr.  \mforall{}bts:bound-term(opr)  List.  \mforall{}i:\mBbbN{}||bts||.    snd(bts[i])  <<  mkterm(f;bts)



Date html generated: 2020_05_19-PM-09_54_17
Last ObjectModification: 2020_03_10-PM-01_46_13

Theory : terms


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