TRUE.
```
$l = [ice cream] , lasagna
$x = ___
```
```
Starting on goal: $l = [$x | [$x is tasty]]
Goal arity 3: $l = [$x | [$x is tasty]]
nextSolution
  Resetting variable $l ("[]"(ice, cream))
  Resetting variable $b (_2)
  Resetting variable $a (_1)
  Resetting variable ___ ($l)
  Resetting variable $y (_4)
  Resetting variable $x (_3)
  Resetting variable ___ ($l)
  Resetting variable $y (_6)
  Resetting variable $x (_5)
  Resetting variable ___ ($l)
  Resetting variable $c (_10)
  Resetting variable $cond (_9)
  Resetting variable $x (_8)
  Resetting variable $list (_7)
Got clause: ___ = [___ | ___]
  Clause unifies to: $l = [___ | [___ is tasty]]
  gdash: ___ = new collector
Goal arity 4: ___ = new collector
   Resetting variable $x (_11)
 Got clause: ___ = new collector
   Clause unifies to: ___ = new collector
  Clause is native.
   gdash: [forall_impl ([___ , [___ is tasty] , ___])] or true
 Goal arity 3: [forall_impl ([___ , [___ is tasty] , ___])] or true
    Resetting variable $b (_13)
    Resetting variable $a (_12)
    Resetting variable ___ ("[]"(forall_impl, "()"("[]"(_8, ",", "[]"(_8, is, tasty), ",", ___))))
    Resetting variable $y (_15)
    Resetting variable $x (_14)
    Resetting variable ___ ("[]"(forall_impl, "()"("[]"(_8, ",", "[]"(_8, is, tasty), ",", ___))))
    Resetting variable $y (_17)
    Resetting variable $x (_16)
    Resetting variable ___ ("[]"(forall_impl, "()"("[]"(_8, ",", "[]"(_8, is, tasty), ",", ___))))
    Resetting variable $c (_21)
    Resetting variable $cond (_20)
    Resetting variable $x (_19)
    Resetting variable $list (_18)
    Resetting variable ___ ("[]"(forall_impl, "()"("[]"(_8, ",", "[]"(_8, is, tasty), ",", ___))))
    Resetting variable $list (_24)
    Resetting variable $c (_23)
    Resetting variable $e (_22)
    Resetting variable ___ ("[]"(forall_impl, "()"("[]"(_8, ",", "[]"(_8, is, tasty), ",", ___))))
    Resetting variable $b (_26)
    Resetting variable $a (_25)
  Got clause: ___ or ___
    Clause unifies to: [forall_impl ([___ , [___ is tasty] , ___])] or true
    gdash: forall_impl ([___ , [___ is tasty] , ___])
  Goal arity 2: forall_impl ([___ , [___ is tasty] , ___])
     Resetting variable $collector (_28)
     Resetting variable $x (_27)
     Resetting variable $x (_29)
     Resetting variable $x (_30)
     Resetting variable $x (_31)
     Resetting variable $x (_32)
     Resetting variable $c (_35)
     Resetting variable $cond (_34)
     Resetting variable $x (_33)
   Got clause: forall_impl ([___ , ___ , ___])
     Clause unifies to: forall_impl ([___ , [___ is tasty] , ___])
     gdash: ___ is tasty
   Goal arity 3: ___ is tasty
    Got clause: [ice cream] is tasty
      Clause unifies to: [ice cream] is tasty
      gdash: saveTo ([[ice cream] , ___])
    Goal arity 2: saveTo ([[ice cream] , ___])
       Resetting variable $collector (_37)
       Resetting variable $x (_36)
     Got clause: saveTo ([___ , ___])
       Clause unifies to: saveTo ([[ice cream] , ___])
      Clause is native.
       gdash: false
     Goal arity 0: false
       Resetting variable ___ (___)
       Resetting variable ___ ("[]"(ice, cream))
       Resetting variable $x (_38)
       Resetting variable $x (_39)
       Resetting variable $x (_40)
       Resetting variable $x (_41)
       Resetting variable $c (_44)
       Resetting variable $cond (_43)
       Resetting variable $x (_42)
       Resetting variable $b (_47)
       Resetting variable $a (_46)
       Resetting variable $c (_45)
       Resetting variable $x (_48)
       Resetting variable $x (_49)
      Resetting variable ___ ("[]"(ice, cream))
      Resetting variable $b (_51)
      Resetting variable $a (_50)
      Resetting variable ___ (_8)
      Resetting variable $y (_53)
      Resetting variable $x (_52)
      Resetting variable ___ (_8)
      Resetting variable $y (_55)
      Resetting variable $x (_54)
      Resetting variable ___ (_8)
      Resetting variable $c (_59)
      Resetting variable $cond (_58)
      Resetting variable $x (_57)
      Resetting variable $list (_56)
      Resetting variable ___ (_8)
    Got clause: lasagna is tasty
      Clause unifies to: lasagna is tasty
      gdash: saveTo ([lasagna , ___])
    Goal arity 2: saveTo ([lasagna , ___])
       Resetting variable $collector (_61)
       Resetting variable $x (_60)
     Got clause: saveTo ([___ , ___])
       Clause unifies to: saveTo ([lasagna , ___])
      Clause is native.
       gdash: false
     Goal arity 0: false
       Resetting variable ___ (___)
       Resetting variable ___ (lasagna)
       Resetting variable $x (_62)
       Resetting variable $x (_63)
       Resetting variable $x (_64)
       Resetting variable $x (_65)
       Resetting variable $c (_68)
       Resetting variable $cond (_67)
       Resetting variable $x (_66)
       Resetting variable $b (_71)
       Resetting variable $a (_70)
       Resetting variable $c (_69)
       Resetting variable $x (_72)
       Resetting variable $x (_73)
      Resetting variable ___ (lasagna)
      Resetting variable $list (_76)
      Resetting variable $c (_75)
      Resetting variable $e (_74)
      Resetting variable ___ (_8)
      Resetting variable $b (_78)
      Resetting variable $a (_77)
      Resetting variable ___ (_8)
      Resetting variable $b (_80)
      Resetting variable $a (_79)
      Resetting variable ___ (_8)
     Resetting variable ___ (___)
     Resetting variable ___ ("[]"(_8, is, tasty))
     Resetting variable ___ (_8)
     Resetting variable $b (_83)
     Resetting variable $a (_82)
     Resetting variable $c (_81)
     Resetting variable $x (_84)
     Resetting variable $x (_85)
    Resetting variable ___ (true)
    Resetting variable ___ ("[]"(forall_impl, "()"("[]"(_8, ",", "[]"(_8, is, tasty), ",", ___))))
    Resetting variable $b (_87)
    Resetting variable $a (_86)
  Got clause: ___ or ___
    Clause unifies to: [forall_impl ([___ , [___ is tasty] , ___])] or true
    gdash: true
  Goal arity 0: true
   Got clause: true
     Clause unifies to: true
     gdash: $l = retrieve (___)
   Goal arity 4: $l = retrieve (___)
      Resetting variable $x (_88)
      Resetting variable ___ ($l)
      Resetting variable $collector (_91)
      Resetting variable $retrieve (_90)
      Resetting variable $x (_89)
    Got clause: ___ = ___ (___)
      Clause unifies to: $l = retrieve (___)
     Clause is native.
      gdash: -
SUCCESS!
  solution found in step 77```
[done] 9 ms