Exact Horner derivatives · constructive traces · G095 partial

Formal polynomial differentiation and Hensel foundations

Independently checked constructive theorems build coupled beta-coded Horner value and formal-derivative traces for arbitrary natural polynomials, including exact successor laws and uniqueness.

15 kernel- and Lean-verified Alpha-closed theorems · 12 conservative definitions · 13 notation dependencies

Alpha v34 checked-use · first admitted v24 · independently kernel and Lean verified; not Stable

Current library: Alpha v34, 4,223 checked-use theorems; Stable remains 432. Historical first admissions, original proof editions, and non-admitted aliases are preserved. Exact original first-admission records.

27 items
HD0001 beta_horner_derivative_trace_exists

Every beta-coded polynomial has two actual coupled Horner traces, the second being its formal derivative trace.

Alpha v34 checked-use · first admitted v24 · independently kernel and Lean verified; not Stable
HD0002 beta_horner_derivative_value_exists

Every arbitrary beta-coded natural polynomial has an actual simultaneous value and exact formal derivative.

Alpha v34 checked-use · first admitted v24 · independently kernel and Lean verified; not Stable
HD0003 beta_horner_derivative_value_projection

The first component of simultaneous formal differentiation is exactly the preexisting polynomial Horner value.

Alpha v34 checked-use · first admitted v24 · independently kernel and Lean verified; not Stable
HD0004 beta_horner_derivative_only_projection

A simultaneously evaluated polynomial pair yields an actual formal-derivative witness.

Alpha v34 checked-use · first admitted v24 · independently kernel and Lean verified; not Stable
HD0005 beta_horner_derivative_only_exists

The exact formal derivative of every arbitrary beta-coded natural polynomial exists.

Alpha v34 checked-use · first admitted v24 · independently kernel and Lean verified; not Stable
HD0007 beta_horner_derivative_empty

The empty beta-coded polynomial and its exact formal derivative both evaluate to zero.

Alpha v34 checked-use · first admitted v24 · independently kernel and Lean verified; not Stable
HD0008 beta_horner_derivative_successor_decompose

A successor polynomial obeys both exact Horner recurrences: f_new=f_old*t+a and f'_new=f'_old*t+f_old.

Alpha v34 checked-use · first admitted v24 · independently kernel and Lean verified; not Stable
HD0009 beta_horner_derivative_functional

Both the value and exact formal derivative of every beta-coded polynomial are simultaneously unique.

Alpha v34 checked-use · first admitted v24 · independently kernel and Lean verified; not Stable
HD000B beta_horner_derivative_exists_unique

Every arbitrary beta-coded natural polynomial has exactly one simultaneously evaluated value/formal-derivative pair.

Alpha v34 checked-use · first admitted v24 · independently kernel and Lean verified; not Stable
HD000C beta_horner_derivative_only_functional

The exact formal derivative, considered without its accompanying polynomial value, is functional.

Alpha v34 checked-use · first admitted v24 · independently kernel and Lean verified; not Stable
HD000D beta_horner_derivative_only_exists_unique

Every beta-coded natural polynomial has one and only one exact formal derivative at every evaluation point.

Alpha v34 checked-use · first admitted v24 · independently kernel and Lean verified; not Stable
HD000E beta_horner_derivative_constant

A one-coefficient polynomial evaluates to its actual decoded constant and has formal derivative zero.

Alpha v34 checked-use · first admitted v24 · independently kernel and Lean verified; not Stable
HD000F beta_horner_derivative_linear

A genuine two-coefficient polynomial a*t+k has the exact decoded formal derivative a.

Alpha v34 checked-use · first admitted v24 · independently kernel and Lean verified; not Stable
ND0001 Beta(b,c,i,x)

Exact hygienic Gödel-beta extraction; a signature-identical alias of checked BetaAt.

Conservative definition · notation layer 0
PD0002 Lt(a,b)

Witness-defined strict order on natural numbers.

Conservative definition · notation layer 0
ND0002 Horner(b,c,x,ell,z)

A complete beta-coded natural-polynomial Horner trace with an explicitly witnessed terminal value.

Conservative definition · notation layer 1
PD0004 Prime(p)

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

Conservative definition · notation layer 0
PD0008 ModEq(m,a,b)

Balanced-natural congruence modulo m.

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
PD0019 Repeat(b,c,a,l)

The decoded prefix repeats a for l positions.

Conservative definition · notation layer 1
PD0020 Pow(a,e,z)

z is the relational e-th power of a.

Conservative definition · notation layer 2

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

Separate complete second-wave branches: Full G095 proof · Alpha v27.