Constant-Time O(1) AST Reduction and Native Delegate Compilation in RICIS-III v7.9

Traditional Computer Algebra Systems (CAS) and dynamic expression interpreters evaluate critical points and mathematical singularities via runtime limit approximations, Taylor series expansions, or recursive L'Hôpital routines. These procedures incur an unresolvable computational bottleneck: dynamic tree-traversal complexity of O(N) alongside runtime branching hazards and undefined IEEE-754 states (NaN, division-by-zero traps). This paper presents a formal engineering proof of how the Recursive Indexed Calculus of Identity and Singularity (RICIS-III v7.9) enables strict constant-time O(1) symbolic Abstract Syntax Tree (AST) reduction and native machine delegate compilation. By enforcing Absolute Continuity (L₀), the Identity Principle (L₁), Safety Protocols (SP₁–SP₅), Protocol P₁ (direct structural evaluation substituting lim(x→a) with x=a), and the geometric realization of Axiom A₆ (S_F ⊠ I_G → R(F,G) →_μ F · G), all indeterminate nodes are eliminated during symbolic pre-compilation. The resulting pruned AST compiles into straight-line native execution blocks (such as .NET CLR dynamic delegates or LLVM IR) operating in deterministic O(1) clock cycles per tick with zero runtime branching.