Independent signed values · squarefreeness · genuine factor lists

Möbius values and prime adjunction

Public research checkpoint, not admitted to Alpha or Stable. Alpha v30 remains 3222 checked-use theorems; Stable remains 432. The on-demand Alpha Lean service does not yet expose these checkpoint theorems; their independently checked literal bundles and unchanged sources are available below.

Define Möbius values from squarefreeness and the parity of actual prime-factor lists, prove unique values, and trace how a fresh prime changes the sign.

21 kernel- and independently Lean-verified checkpoint theorems · 20 conservative definitions · 26 notation dependencies

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable

41 items
MV0001 alternating_signed_unit_exists

Parity constructs an actual canonical code for the alternating unit at every natural exponent.

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable
MV0002 alternating_signed_unit_functional

Constructive parity exclusivity makes the signed alternating-unit code unique.

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable
MV0003 alternating_signed_unit_zero

Exponent zero has canonical positive-unit code two, not code one.

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable
MV0004 mobius_prime_factor_count_unique

Actual unordered prime-factor uniqueness proves literal equality of factor counts; no canonical list is assumed.

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable
MV0005 mobius_input_positive

The independent Möbius graph explicitly excludes the infinite-divisor boundary zero.

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable
MV0006 mobius_zero_has_no_value

No canonical signed value is asserted for the excluded input zero.

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable
MV0007 mobius_from_prime_square

A supplied actual prime-square divisor of a positive input constructs its canonical zero Möbius value.

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable
MV0008 mobius_from_squarefree_factor_count

Squarefreeness, a real prime-factor list and its actual length parity construct the nonzero Möbius value.

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable
MV0009 mobius_value_exists

Finite prime-square search, actual prime factorization and parity construct the independently defined Möbius value for every positive natural.

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable
MV000A mobius_squarefree_evaluation

For a squarefree input, every real factor list computes the same Möbius sign, independently of ordering or chosen witnesses.

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable
MV000B mobius_value_functional

Möbius values have literally unique canonical signed codes; square-divisor and squarefree branches are disjoint by proof.

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable
MV000C mobius_value_exists_unique

Every positive natural has one actual, uniquely determined, factorization-defined canonical Möbius value.

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable
MV000D mobius_one

The unit boundary has Möbius value positive one (signed code two), proved from its actual empty prime factorization.

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable
MV000E mobius_squarefree_divisor

A genuine divisor of a positive squarefree input is positive and squarefree, with no bound assumption on its prime-square witnesses.

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable
MV000F mobius_prime_squarefree

No genuine prime has a squared prime divisor; both nonzero and nonunit boundaries are proved from primality.

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable
MV0010 mobius_squarefree_fresh_prime_product

Adjoining an actual prime not dividing a squarefree input preserves squarefreeness; Euclid cancellation excludes every possible squared prime divisor.

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable
MV0011 mobius_prime_factor_list_append

The beta extension theorem constructs a new actual prime list with one more occurrence and product n*p; no sorted or preselected factorization is supplied.

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable
MV0012 mobius_positive_unit_negates_to_negative_unit

Canonical code two is positive one and code one is its genuine decoded additive inverse.

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable
MV0013 alternating_signed_unit_successor_negates

The alternating unit at the successor exponent is the canonical signed negation, proved by the two constructive parity cases.

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable
MV0014 mobius_prime_square_value_zero

Every independently defined Möbius value at an actual prime-square multiple is the canonical zero code.

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable
MV0015 mobius_fresh_prime_negates

For an actual prime not dividing n, adjoining that prime negates the genuine Möbius value, including all nonsquarefree zero cases.

Public research checkpoint: original HA and independently compiled Lean verified; not Alpha-enrolled, no Alpha checked-use authority; not Stable
PD0002 Lt(a,b)

Witness-defined strict order on natural numbers.

Conservative definition · notation layer 0
PD0003 Dvd(d,n)

The natural number d divides n.

Conservative definition · notation layer 0
PD0004 Prime(p)

p is nonunit and every factorization of p has a unit factor.

Conservative definition · notation layer 0
PD0013 BetaAt(b,c,i,x)

x is the bounded beta-decoded value at index i.

Conservative definition · notation layer 0
PD0014 Product(b,c,l,z)

z is the product of a beta-coded prefix of length l.

Conservative definition · notation layer 1
ND0142 SignedDecode(z,p,n)

The original canonical integer code: even 2p denotes p, and odd 2k+1 denotes −(k+1). The decoded positive and negative parts are normalized.

Conservative definition · notation layer 0
ND0146 SignedNegate(a,b)

Canonical signed negation swaps the positive and negative decoded parts.

Conservative definition · notation layer 1
PD0009 Even(n)

n has an even decomposition.

Conservative definition · notation layer 0
PD0010 Odd(n)

n has an odd decomposition.

Conservative definition · notation layer 0
ND0233 AlternatingSignedUnit(n,z)

The actual signed code of (-1)^n from parity: even exponents give code 2 (+1), odd exponents code 1 (-1).

Conservative definition · notation layer 1
ND0234 HasPrimeSquareDivisor(n)

A genuine prime p and an actual quotient witness p*p dividing n. This is not an asserted factorization oracle.

Conservative definition · notation layer 1
ND0149 PrimeFactorList(n,b,c,l)

A positive number n, an actual length-l beta product equal to n, and prime entries. No sortedness or supplied canonicalization is required.

Conservative definition · notation layer 2
ND0235 FactorParitySign(n,z)

A genuine finite prime-factor list for n has a length whose alternating signed unit is z. Independence of the factor list is proved.

Conservative definition · notation layer 3
PD0001 Le(a,b)

Witness-defined non-strict order on natural numbers.

Conservative definition · notation layer 0
ND0188 Squarefree(n)

Positive n with no squared prime divisor p² for any prime p≤n. The bounded condition is proved to exclude all squared prime divisors.

Conservative definition · notation layer 1
ND0236 Mobius(n,z)

For positive n, an actual prime-square divisor gives signed zero; otherwise squarefreeness and real factor-count parity give the signed unit. No divisor-sum or inversion identity occurs here.

Conservative definition · notation layer 4

Only proof arrows are theorem dependencies. Definition arrows are hygienic abbreviations of exact first-order formulas and introduce no axiom or kernel symbol.