I derive the quantum mechanical prediction
for the singlet spin state using local measurement functions within the Space-Time Algebra (STA) framework. I establish a compact and computationally tractable STA representation of the two-particle singlet state,
, which is simpler than previously published forms but is not required for the correlation calculation. The analysis shows that STA naturally generates both scalar dot-product terms
and
and bivector wedge-product terms
and
from local spin-detector interactions, whereas standard quantum
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