problem_id
stringlengths
17
84
category
stringclasses
5 values
query
stringlengths
10
8.6k
common.misc.SUB_LIST_TOPSPLIT
generic
`!l n. APPEND (SUB_LIST(0,n) l) (SUB_LIST(n,LENGTH l - n) l) = l`
common.misc.LENGTH_SUB_LIST
generic
`!l m n. LENGTH(SUB_LIST(m,n) l) = MIN n (LENGTH l - m)`
common.misc.SUB_LIST_TRIVIAL
generic
`!l m n. LENGTH l <= m ==> SUB_LIST(m,n) l = []`
common.misc.SUB_LIST_IDEMPOTENT
generic
`!n (l:(A)list). SUB_LIST (0,n) (SUB_LIST (0,n) l) = SUB_LIST (0,n) l`
common.misc.SUB_LIST_MIN
generic
`!(l:(A)list) (n:num) m. SUB_LIST (0,n) (SUB_LIST (0,m) l) = SUB_LIST (0, MIN n m) l`
common.misc.SUB_LIST_REFL
generic
`!(l:A list) n. LENGTH l <= n ==> SUB_LIST(0,n) l = l`
common.misc.SUB_LIST_1
generic
`!(l:A list) n. SUB_LIST(n,1) l = if n < LENGTH l then [EL n l] else []`
common.misc.SUB_LIST_APPEND_LEFT
generic
`!(l:A list) m n. n <= LENGTH l ==> SUB_LIST(0,n) (APPEND l m) = SUB_LIST(0,n) l`
common.misc.APPEND_EXISTS
generic
`forall (x:(A)list). exists (x1:(A)list) x2. x = APPEND x1 x2`
common.misc.RELPOW_ITER
generic
`!f n x y:A. RELPOW n (\a b. f a = b) x y <=> ITER n f x = y`
common.misc.MOD_64_CLAUSES
bit_vector
`(!c. val(word(c MOD 64):int64) = c MOD 64) /\ (!c. val(word(c MOD 256):byte) = c MOD 256) /\ (!c. val(word c:int64) MOD 64 = c MOD 64) /\ (!n. n MOD 256 MOD 64 = n MOD 64) /\ (!n. n MOD 64 MOD 64 = n MOD 64) /\ (!n. n MOD 2 EXP 64 MOD 64 = n MOD 64) /\ (!n. n MOD 64 MOD 2 EXP 64 = n MOD 64)`
common.misc.WORD_UNMASK_64
bit_vector
`(if p then word 18446744073709551615 else word 0):int64 = word_neg(word(bitval p)) /\ (if p then word 0 else word 18446744073709551615):int64 = word_neg(word(bitval(~p)))`
common.misc.EQUAL_FROM_CONGRUENT_REAL
generic
`!n x y z. (&0 <= x /\ x < &2 pow n) /\ (&0 <= y /\ y < &2 pow n) /\ integer z /\ integer((x - y) / &2 pow n + z) ==> x = y`
common.misc.EQUAL_FROM_CONGRUENT_MOD
generic
`!n x y z. &y:real < &2 pow n /\ integer z /\ integer((&x - &y) / &2 pow n + z) ==> x MOD (2 EXP n) = y`
common.misc.EQUAL_FROM_CONGRUENT_MOD_MOD
generic
`!n m r k r'. r < 2 EXP k /\ m < 2 EXP k /\ ~(m = 0) /\ integer((&r - r') / &2 pow k) /\ &(n MOD m) = r' ==> n MOD m = r`
common.misc.LIMB_0
generic
`!w i. limb w 0 i = 0`
common.misc.LIMB_BOUND
generic
`!w n i. limb w n i < 2 EXP w`
common.misc.DIGITSUM_WORDS_LIMB_GEN
generic
`!w n k. nsum {i | i < k} (\i. 2 EXP (w * i) * limb w n i) = n MOD (2 EXP (w * k))`
common.misc.DIGITSUM_WORKS_LIMB
generic
`!w n k. n < 2 EXP (w * k) ==> nsum {i | i < k} (\i. 2 EXP (w * i) * limb w n i) = n`
common.misc.LIMB_DIGITSUM
generic
`!w n k d. (!i. i < k ==> d i < 2 EXP w) ==> limb w (nsum {i | i < k} (\i. 2 EXP (w * i) * d i)) n = if n < k then d n else 0`
common.misc.DIGITSUM_LT_STEP
generic
`!B b k n. 0 < B /\ (!i. i < k ==> b i < B) ==> (nsum {i | i < k} (\i. B EXP i * b i) < B EXP n <=> k <= n \/ b n = 0 /\ nsum {i | i < k} (\i. B EXP i * b i) < B EXP (n + 1))`
common.misc.VAL_BOUND_64
bit_vector
`!x:int64. val x < 2 EXP 64`
common.misc.VAL_BOUND_128
bit_vector
`!x:int128. val x < 2 EXP 128`
common.misc.VAL_BOUND_256
bit_vector
`!x:int256. val x < 2 EXP 256`
common.misc.LEXICOGRAPHIC_LT
generic
`!B h l h' l':num. l < B /\ l' < B ==> (B * h + l < B * h' + l' <=> h < h' \/ h = h' /\ l < l')`
common.misc.LEXICOGRAPHIC_LE
generic
`!B h l h' l':num. l < B /\ l' < B ==> (B * h + l <= B * h' + l' <=> h < h' \/ h = h' /\ l <= l')`
common.misc.LEXICOGRAPHIC_EQ
generic
`!B h l h' l':num. l < B /\ l' < B ==> (B * h + l = B * h' + l' <=> h = h' /\ l = l')`
common.misc.LEXICOGRAPHIC_LT_64
generic
`!h l h' l'. l < 2 EXP 64 /\ l' < 2 EXP 64 ==> (2 EXP 64 * h + l < 2 EXP 64 * h' + l' <=> h < h' \/ h = h' /\ l < l')`
common.misc.LEXICOGRAPHIC_LE_64
generic
`!h l h' l'. l < 2 EXP 64 /\ l' < 2 EXP 64 ==> (2 EXP 64 * h + l <= 2 EXP 64 * h' + l' <=> h < h' \/ h = h' /\ l <= l')`
common.misc.LEXICOGRAPHIC_EQ_64
generic
`!h l h' l'. l < 2 EXP 64 /\ l' < 2 EXP 64 ==> (2 EXP 64 * h + l = 2 EXP 64 * h' + l' <=> h = h' /\ l = l')`
common.misc.LEXICOGRAPHIC_LT_INT64
bit_vector
`!h (l:int64) h' (l':int64). 2 EXP 64 * h + val l < 2 EXP 64 * h' + val l' <=> h < h' \/ h = h' /\ val l < val l'`
common.misc.LEXICOGRAPHIC_LE_INT64
bit_vector
`!h (l:int64) h' (l':int64). 2 EXP 64 * h + val l <= 2 EXP 64 * h' + val l' <=> h < h' \/ h = h' /\ val l <= val l'`
common.misc.LEXICOGRAPHIC_EQ_INT64
bit_vector
`!h (l:int64) h' (l':int64). 2 EXP 64 * h + val l = 2 EXP 64 * h' + val l' <=> h = h' /\ l = l'`
common.misc.WORD_SUBWORD_EQUAL_SUBWORD_THEN_ZX
bit_vector
`!(x:N word) (pos:num) (len1:num) (len2:num). len1 >= len2 /\ len1 <= dimindex(:P) /\ len2 = dimindex(:M) ==> ((word_subword x (pos,len2)):M word) = word_zx ((word_subword x (pos,len1)):P word)`
common.misc.WORD_SUBWORD_N_EQUAL
bit_vector
`!(x:N word). (word_subword x (0,dimindex (:N))) = x`
common.misc.WORD_SUBWORD_EQUAL_WORD_ZX_POS0
bit_vector
`!(x:N word) (len:num). len = dimindex(:M) /\ len <= dimindex(:N) ==> ((word_subword x (0,len)):M word) = word_zx x`
common.misc.WORD_CTZ_INDEX
bit_vector
`!x:N word. word_ctz x = if x = word 0 then dimindex(:N) else index 2 (val x)`
common.misc.WORD_CLZ_BITSIZE
bit_vector
`!x:N word. word_clz x = dimindex(:N) - bitsize(val x)`
common.misc.WORD_INDEX_WRAP
bit_vector
`!i. word(8 * (i + 1) + 18446744073709551608):int64 = word(8 * i)`
common.misc.MOD_UNIQ_BALANCED
generic
`!n p z q. q * p <= n + p /\ n < q * p + p /\ q * p + z = bitval(n < q * p) * p + n ==> n MOD p = z`
common.misc.MOD_UNIQ_BALANCED_REAL
generic
`!n p z q k. p < 2 EXP k /\ z < 2 EXP k /\ q * p <= n + p /\ n < q * p + p /\ integer((&n - &z - (&q - &(bitval(n < q * p))) * &p) / &2 pow k) ==> n MOD p = z`
common.misc.INT_REM_UNIQ_BALANCED
generic
`!n p z q. q * p <= n + p /\ n < q * p + p /\ q * p + z = &(bitval(n < q * p)) * p + n ==> n rem p = z`
common.misc.INT_REM_UNIQ_BALANCED_MOD
generic
`!n p z q k. &0 <= p /\ p < &2 pow k /\ &0 <= z /\ z < &2 pow k /\ q * p <= n + p /\ n < q * p + p /\ (q * p + z == &(bitval(n < q * p)) * p + n) (mod (&2 pow k)) ==> n rem p = z`
common.misc.VAL_WORD_SUBWORD_JOIN_64
bit_vector
`!(h:int64) (l:int64) k. k <= 64 ==> val(word_subword (word_join h l:int128) (k,64) :int64) = 2 EXP (64 - k) * val h MOD 2 EXP k + val l DIV (2 EXP k)`
common.misc.NOCARRY_WORD_ADC
bit_vector
`!b x y:N word. val x + val y + bitval b = val(word_add (word_add x y) (word (bitval b))) <=> val x + val y + bitval b < 2 EXP dimindex(:N)`
common.misc.CARRY_WORD_ADC
bit_vector
`!b x y:N word. ~(val x + val y + bitval b = val(word_add (word_add x y) (word (bitval b)))) <=> 2 EXP dimindex(:N) <= val x + val y + bitval b`
common.misc.NOCARRY_WORD_ADD
bit_vector
`!x y:N word. val x + val y = val(word_add x y) <=> val x + val y < 2 EXP dimindex(:N)`
common.misc.CARRY_WORD_ADD
bit_vector
`!x y:N word. ~(val x + val y = val(word_add x y)) <=> 2 EXP dimindex(:N) <= val x + val y`
common.misc.NOCARRY_WORD_SBB
bit_vector
`!b x y:N word. &(val x) - (&(val y) + &(bitval b)):int = &(val(word_sub x (word_add y (word(bitval b))))) <=> if b then val y < val x else val y <= val x`
common.misc.CARRY_WORD_SBB
bit_vector
`!b x y:N word. ~(&(val x) - (&(val y) + &(bitval b)):int = &(val(word_sub x (word_add y (word(bitval b)))))) <=> if b then val x <= val y else val x < val y`
common.misc.NOCARRY_WORD_SUB
bit_vector
`!x y:N word. &(val x) - &(val y):int = &(val(word_sub x y)) <=> val y <= val x`
common.misc.CARRY_WORD_SUB
bit_vector
`!x y:N word. ~(&(val x) - &(val y):int = &(val(word_sub x y))) <=> val x < val y`
common.misc.NOCARRY_THM
bit_vector
`!x:int64. 2 EXP 64 <= val x <=> F`
common.misc.NOCARRY64_ADC
bit_vector
`!b x y:int64. (val x + val y + bitval b = val(word_add (word_add x y) (word (bitval b)))) <=> val x + val y + bitval b < 2 EXP 64`
common.misc.CARRY64_ADC
bit_vector
`!b x y:int64. ~(val x + val y + bitval b = val(word_add (word_add x y) (word (bitval b)))) <=> 2 EXP 64 <= val x + val y + bitval b`
common.misc.NOCARRY64_ADD
bit_vector
`!x y:int64. (val x + val y = val(word_add x y)) <=> val x + val y < 2 EXP 64`
common.misc.CARRY64_ADD
bit_vector
`!x y:int64. ~(val x + val y = val(word_add x y)) <=> 2 EXP 64 <= val x + val y`
common.misc.NOCARRY64_ADD_1
bit_vector
`!x:int64. (val x + 1 = val(word_add x (word 1))) <=> val x + 1 < 2 EXP 64`
common.misc.CARRY64_ADD_1
bit_vector
`!x:int64. ~(val x + 1 = val(word_add x (word 1))) <=> 2 EXP 64 <= val x + 1`
common.misc.NOCARRY64_SBB
bit_vector
`!b x y:int64. (&(val x) - (&(val y) + &(bitval b)):int = &(val(word_sub x (word_add y (word (bitval b)))))) <=> val y + bitval b <= val x`
common.misc.CARRY64_SBB
bit_vector
`!b x y:int64. ~(&(val x) - (&(val y) + &(bitval b)):int = &(val(word_sub x (word_add y (word (bitval b)))))) <=> val x < val y + bitval b`
common.misc.NOCARRY64_SUB
bit_vector
`!x y:int64. (&(val x) - &(val y):int = &(val(word_sub x y))) <=> val y <= val x`
common.misc.CARRY64_SUB
bit_vector
`!x y:int64. ~(&(val x) - &(val y):int = &(val(word_sub x y))) <=> val x < val y`
common.misc.ACCUMULATE_ADC
bit_vector
`!b x y:int64. val(x) + val(y) + val(word(bitval b):int64) = 2 EXP 64 * bitval(2 EXP 64 <= val x + val y + bitval b) + val(word_add (word_add x y) (word (bitval b)))`
common.misc.ACCUMULATE_ADC_0
bit_vector
`!b x:int64. val(x) + val(word(bitval b):int64) = 2 EXP 64 * bitval(2 EXP 64 <= val x + bitval b) + val(word_add x (word (bitval b)))`
common.misc.ACCUMULATE_ADD
bit_vector
`!x y:int64. val(x) + val(y) = 2 EXP 64 * bitval(2 EXP 64 <= val x + val y) + val(word_add x y)`
common.misc.ACCUMULATE_SBB
bit_vector
`!b x y:int64. 2 EXP 64 * bitval(val x < val y + bitval b) + val x = val(word_sub x (word_add y (word (bitval b)))) + val y + bitval b`
common.misc.ACCUMULATE_SBB_RZERO
bit_vector
`!b x:int64. 2 EXP 64 * bitval(val x < bitval b) + val x = val(word_sub x (word (bitval b))) + bitval b`
common.misc.ACCUMULATE_SBB_LZERO
bit_vector
`!b x:int64. 2 EXP 64 * bitval(0 < val x + bitval b) = val(word_neg(word_add x (word (bitval b)))) + val x + bitval b`
common.misc.ACCUMULATE_SUB
bit_vector
`!x y:int64. 2 EXP 64 * bitval(val x < val y) + val x = val(word_sub x y) + val y`
common.misc.ACCUMULATE_MUL_GEN
bit_vector
`!(x:N word) (y:N word). 2 EXP dimindex(:N) * val(word_zx (word_ushr (word(val x * val y):(N tybit0)word) (dimindex(:N))):N word) + val(word_zx (word(val x * val y):(N tybit0)word):N word) = val x * val y`
common.misc.ACCUMULATE_MUL
bit_vector
`!(x:int64) (y:int64). 2 EXP 64 * val(word_zx (word_ushr (word(val x * val y):(128)word) 64):int64) + val(word_zx (word(val x * val y):(128)word):int64) = val x * val y`
common.misc.APPROXIMATE_WORD_USHR
bit_vector
`!(dest:int64) a n. dest = word_ushr a n ==> ?b e. dest = b /\ &0 <= e /\ e <= &1 - inv(&2 pow n) /\ &(val b) = &(val a) / &2 pow n - e`
common.misc.APPROXIMATE_WORD_SHL
bit_vector
`!(dest:int64) a n. dest = word_shl a n ==> &2 pow n * &(val a):real < &2 pow 64 ==> ?c. dest = c /\ &(val c):real = &2 pow n * &(val a)`
common.misc.APPROXIMATE_WORD_ADD
bit_vector
`!(dest:int64) a b. dest = word_add a b ==> &(val a) + &(val b):real < &2 pow 64 ==> ?c. dest = c /\ &(val c):real = &(val a) + &(val b)`
common.misc.APPROXIMATE_WORD_SUB
bit_vector
`!(dest:int64) a b. dest = word_sub a b ==> &0 <= &(val a) - &(val b) ==> ?c. dest = c /\ &(val c) = &(val a) - &(val b)`
common.misc.APPROXIMATE_WORD_MUL
bit_vector
`!(dest:int64) (a:int64) (b:int64). dest = word(0 + val a * val b) ==> &(val a) * &(val b):real < &2 pow 64 ==> ?c. dest = c /\ &(val c):real = &(val a) * &(val b)`
common.misc.APPROXIMATE_WORD_MADD
bit_vector
`!(dest:int64) (a:int64) (b:int64) (c:int64). dest = word(val a + val b * val c) ==> &(val a) + &(val b) * &(val c):real < &2 pow 64 ==> ?d. dest = d /\ &(val d):real = &(val a) + &(val b) * &(val c)`
common.misc.APPROXIMATE_WORD_MNEG
bit_vector
`!(dest:int64) (a:int64) (b:int64). dest = iword(&0 - ival a * ival b) ==> &0 < &(val a) * &(val b):real /\ &(val a) * &(val b):real <= &2 pow 64 ==> ?c. dest = c /\ &(val c):real = &2 pow 64 - &(val a) * &(val b)`
common.misc.APPROXIMATE_WORD_IWORD
bit_vector
`!(dest:int64) x x'. dest = iword x ==> &0 <= x' /\ x' < &2 pow 64 /\ (x == x') (mod (&2 pow 64)) ==> ?c. dest = c /\ &(val c) = real_of_int x'`
common.misc.FLAG_FROM_CARRY_REAL_LT
bit_vector
`!k x (y:real) p. &0 <= &2 pow k * &(bitval p) + x - y /\ &2 pow k * &(bitval p) + x - y < &2 pow k ==> (p <=> x < y)`
common.misc.FLAG_FROM_CARRY_REAL_LE
bit_vector
`!k x (y:real) p. &0 <= &2 pow k * (&1 - &(bitval p)) + y - x /\ &2 pow k * (&1 - &(bitval p)) + y - x < &2 pow k ==> (p <=> x <= y)`
common.misc.FLAG_FROM_CARRY_LT
bit_vector
`!k m n p. &0:real <= &2 pow k * &(bitval p) + &m - &n /\ &2 pow k * &(bitval p) + &m - &n:real < &2 pow k ==> (p <=> m < n)`
common.misc.FLAG_FROM_CARRY_LE
bit_vector
`!k m n p. &0:real <= &2 pow k * (&1 - &(bitval p)) + &n - &m /\ &2 pow k * (&1 - &(bitval p)) + &n - &m:real < &2 pow k ==> (p <=> m <= n)`
common.misc.WORD_FROM_CARRY_REAL_LT
bit_vector
`!k x (y:real) (w:N word). y - x <= &2 pow k /\ &0 <= &2 pow k * &(val w) + x - y /\ &2 pow k * &(val w) + x - y < &2 pow k ==> w = word(bitval(x < y))`
common.misc.WORD_FROM_CARRY_REAL_LE
bit_vector
`!k x (y:real) (w:N word). y - x < &2 pow k /\ &0 <= &2 pow k * (&1 - &(val w)) + y - x /\ &2 pow k * (&1 - &(val w)) + y - x < &2 pow k ==> w = word(bitval(x <= y))`
common.misc.WORD_FROM_CARRY_LT
bit_vector
`!k x y (w:N word). y - x:real <= &2 pow k /\ &0:real <= &2 pow k * &(val w) + x - y /\ &2 pow k * &(val w) + x - y:real < &2 pow k ==> w = word(bitval(x < y))`
common.misc.WORD_FROM_CARRY_LE
bit_vector
`!k x (w:N word). &y - &x < &2 pow k /\ &0 <= &2 pow k * (&1 - &(val w)) + &y - &x /\ &2 pow k * (&1 - &(val w)) + &y - &x < &2 pow k ==> w = word(bitval(x <= y))`
common.misc.FLAG_AND_MASK_FROM_CARRY_REAL_LT
bit_vector
`!c (m:int64) k (x:real). --(&2 pow k) <= x /\ x < &2 pow k /\ &0 <= x - &2 pow k * (&(val m) - &2 pow 64 * &(bitval c)) /\ x - &2 pow k * (&(val m) - &2 pow 64 * &(bitval c)) < &2 pow k ==> m = word_neg(word(bitval(x < &0))) /\ (c <=> x < &0)`
common.misc.FLAG_AND_MASK_FROM_CARRY_LT
bit_vector
`!c (m:int64) k x y. --(&2 pow k):real <= &x - &y /\ &x - &y:real < &2 pow k /\ &0:real <= &x - &y - &2 pow k * (&(val m) - &2 pow 64 * &(bitval c)) /\ &x - &y - &2 pow k * (&(val m) - &2 pow 64 * &(bitval c)):real < &2 pow k ==> m = word_neg(word(bitval(x < y))) /\ (...
common.misc.MASK_AND_VALUE_FROM_CARRY_REAL_LT
bit_vector
`!(m:int64) l k (x:real). (--(&2 pow k) <= x /\ x < &2 pow k) /\ (&0 <= l /\ l < &2 pow k) /\ integer(((&2 pow k * &(val m) + l) - x) / &2 pow (k + 64)) ==> m = word_neg(word(bitval(x < &0))) /\ l = if x < &0 then x + &2 pow k else x`
common.misc.MASK_AND_VALUE_FROM_CARRY_LT
bit_vector
`!(m:int64) l k x y. (--(&2 pow k):real <= &x - &y /\ &x - &y:real < &2 pow k) /\ (&0 <= l /\ l < &2 pow k) /\ integer(((&2 pow k * &(val m) + l) - (&x - &y)) / &2 pow (k + 64)) ==> m = word_neg(word(bitval(x < y))) /\ l = if x < y then (&x - &y) + &2 pow k else &x - &y`
common.misc.WORD32_ADD_SUB_OF_LT
bit_vector
`!pc tgt. pc <= 2 EXP 31 /\ tgt < 2 EXP 31 ==> word_add (word pc) (word_sx (iword (&tgt - &pc):int32)):int64 = word tgt`
common.misc.WORD_MULTIPLICATION_LOHI
bit_vector
`!(x:N word) (y:N word). word_mul x y = word_zx(word(val x * val y):(N tybit0)word) /\ word((val x * val y) DIV 2 EXP dimindex(:N)):N word = word_zx (word_ushr (word(val x * val y):(N tybit0)word) (dimindex(:N)))`
common.misc.WORD_MULTIPLICATION_LOHI_64
bit_vector
`!(x:int64) (y:int64). word_mul x y = word_zx(word(val x * val y):int128) /\ word((val x * val y) DIV 2 EXP 64):int64 = word_zx (word_ushr (word(val x * val y):int128) 64)`
common.misc.WORD_DEINTERLEAVE_CLAUSES
bit_vector
`(word_deinterleave:num->num->M word->(N word)list) 2 n z = [word_subdeinterleave 2 n z 0; word_subdeinterleave 2 n z 1] /\ (word_deinterleave:num->num->M word->(N word)list) 3 n z = [word_subdeinterleave 3 n z 0; word_subdeinterleave 3 n z 1; word_subdeinterleave 3 n z 2]`
common.misc.WORD_OF_BITS_AS_WORD_ALT
bit_vector
`!s. word_of_bits s : N word = word(nsum (0..dimindex (:N) - 1) (\i. 2 EXP i * bitval(i IN s)))`
common.misc.WORD_CONDENSE_ALT
bit_vector
`!x y:N word. word_condense x y = word(nsum (0..dimindex(:N)-1) (\i. 2 EXP word_popcount(word_and y (word(2 EXP i - 1))) * bitval(bit i (word_and x y))))`
common.misc.NUM_CONDENSE_0
generic
`(!m. num_condense m 0 = 0) /\ (!n. num_condense 0 n = 0)`
common.misc.NUM_CONDENSE_CLAUSES
generic
`(!m n. num_condense (2 * n) (2 * m) = num_condense n m) /\ (!m n. num_condense (2 * n + 1) (2 * m) = num_condense n m) /\ (!m n. num_condense (2 * n) (2 * m + 1) = 2 * num_condense n m) /\ (!m n. num_condense (2 * n + 1) (2 * m + 1) = 2 * num_condense n m + 1)`