String.internal_reverse_append: def of bend-mathlib@0.8.1.0
Import: import bend-mathlib@0.8.1.0/string.bend as String
Lines 89-99 of bend-mathlib@0.8.1.0/string.bend: https://jend.leeeet.dev/read.txt?path=bend-mathlib@0.8.1.0/string.bend&start_line=89&end_line=99

import Base

def internal_reverse_append(a: String, +b: String) -> {String.append(String.reverse(b), String.reverse(a)) == String.reverse(String.append(a, b)) : String}:
  match a:
    case SNil{}:
      %internal_append_nil(String.reverse(b)) : {_ == String.reverse(b) : String}
      {==}
    case SCon{+h, +t}:
      %internal_reverse_go_spec(t, SCon{h, SNil{}}) : {String.append(String.reverse(b), _) == String.reverse.go(String.append(t, b), SCon{h, SNil{}}) : String}
      %internal_reverse_go_spec(String.append(t, b), SCon{h, SNil{}}) : {String.append(String.reverse(b), String.append(String.reverse(t), SCon{h, SNil{}})) == _ : String}
      %internal_reverse_append(t, b) : {String.append(String.reverse(b), String.append(String.reverse(t), SCon{h, SNil{}})) == String.append(_, SCon{h, SNil{}}) : String}
      %internal_append_assoc(String.reverse(b), String.reverse(t), SCon{h, SNil{}}) : {String.append(String.reverse(b), String.append(String.reverse(t), SCon{h, SNil{}})) == _ : String}
      {==}

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.append
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.reverse
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.reverse.go
  https://jend.leeeet.dev/definition.txt?path=bend-mathlib@0.8.1.0/string.bend&name=internal_append_assoc
  https://jend.leeeet.dev/definition.txt?path=bend-mathlib@0.8.1.0/string.bend&name=internal_append_nil
  https://jend.leeeet.dev/definition.txt?path=bend-mathlib@0.8.1.0/string.bend&name=internal_reverse_go_spec