s487.py

from research import *
s=begin(487,'A shared row grammar','What common rule generates divergent regular and cumulative changes?',{'compatible_row':['b','r'],'lifespan':'b+r','regular_selector':[1,0],'cumulative_selector':[1,1]},['Strategy §§3.2,5B','C485–C486'])
moves={'repartition_100':(100,-100),'LXX_Lamech':(0,-24),'insert_Cainan':(130,330)}
r={k:{'regular_effect':b,'cumulative_effect':b+r,'remainder_effect':r} for k,(b,r) in moves.items()}
finish(s,{'row_moves':r,'regular_formula':'anchor_R + sum(selected begetting intervals) + declared boundary terms','cumulative_formula':'anchor_C + sum(selected lifespans) + declared phase terms','projection_matrix':[[1,0],[1,1]],'determinant':1},
 'A richer source row supports two distinct measurements. Repartition lies in the cumulative kernel; a lifespan-only change can leave the regular projection fixed. This explains family divergence without a universal map between their endpoints.',
 'Test the admitted Cainan insertion as a concrete cross-mode vector.',{'repartition_kernel':r['repartition_100']['cumulative_effect']==0,'insertion':r['insert_Cainan']['regular_effect']==130 and r['insert_Cainan']['cumulative_effect']==460})