Get the chain-code field from a bip32-ext-pub-key.
(bip32-ext-pub-key->chain-code x) → chain-code
This is an ordinary field accessor created by fty::defprod.
Function:
(defun bip32-ext-pub-key->chain-code$inline (x) (declare (xargs :guard (bip32-ext-pub-key-p x))) (declare (xargs :guard t)) (let ((__function__ 'bip32-ext-pub-key->chain-code)) (declare (ignorable __function__)) (mbe :logic (b* ((x (and t x))) (bip32-chain-code-fix (std::da-nth 1 x))) :exec (std::da-nth 1 x))))
Theorem:
(defthm bip32-chain-code-p-of-bip32-ext-pub-key->chain-code (b* ((chain-code (bip32-ext-pub-key->chain-code$inline x))) (bip32-chain-code-p chain-code)) :rule-classes :rewrite)
Theorem:
(defthm bip32-ext-pub-key->chain-code$inline-of-bip32-ext-pub-key-fix-x (equal (bip32-ext-pub-key->chain-code$inline (bip32-ext-pub-key-fix x)) (bip32-ext-pub-key->chain-code$inline x)))
Theorem:
(defthm bip32-ext-pub-key->chain-code$inline-bip32-ext-pub-key-equiv-congruence-on-x (implies (bip32-ext-pub-key-equiv x x-equiv) (equal (bip32-ext-pub-key->chain-code$inline x) (bip32-ext-pub-key->chain-code$inline x-equiv))) :rule-classes :congruence)