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24 lines
661 B
Plaintext
24 lines
661 B
Plaintext
// b = (left.right ~ right)
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// a = (left.left ~ b)
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// return a
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BBT.rgt_rotate
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: ∀(K: *)
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∀(V: *)
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∀(size: #U60)
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∀(key: K)
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∀(val: V)
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∀(lft: (BBT K V))
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∀(rgt: (BBT K V))
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(BBT K V)
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= λK λV λsize λkey λval λlft λrgt
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let P = λx ∀(key: K) ∀(val: V) ∀(rgt: (BBT K V)) (BBT K V)
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let bin = λ_size λlft.key λlft.val λlft.lft λlft.rgt
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λkey λval λrgt
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let b = (BBT.new_node K V key val lft.rgt rgt)
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let a = (BBT.new_node K V lft.key lft.val lft.lft b )
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a
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let tip =
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λkey λval λrgt
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(BBT.bin K V size key val (BBT.tip K V) rgt)
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((~lft P bin tip) key val rgt)
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