s741.py

from research import *
p=json.loads((ROOT/'model/tradition_displacement_profiles.json').read_text()); names=p['names']; sp=p['profiles']['SP']
s=begin(741,'Recover SP local changes from its boundary profile','Which source rows and counting terms generateSP’s entire displacement staircase?',{'profile':'SPminusMT','Lamech_regular':'53counted versus52completed'},['C739; File18 §§3.1–3.2,6C'])
d={k:{names[i]:v[i]-v[i+1] for i in range(len(names)-1) if v[i]!=v[i+1]} for k,v in sp.items()}
finish(s,{'nonzero_edge_changes':d,'Lamech_regular_decomposition':[-129,-1]},'TheSP profile localizes its regular130-yearLamech difference as129 from the nominal age plus one completed-year correction. Cumulative support remains the five lifespan changes. The whole staircase therefore explains both the shared plateaus and the different mode response.','Test the entire post-ShelahLXX/SP family where births agree but cumulative coordinates differ.',{'Lamech_regular':d['R']['Lamech']==-130==-129-1,'cumulative_support':d['C_lower']=={'Jared':-115,'Methuselah':-249,'Lamech':-124,'Eber':-60,'Terah':-60},'support_locality':len(d['C_lower'])==5})