s680.py

from research import *
s=begin(680,'Generate the exterior Prophetic opening','Does converting only the two outer cores recover the supplied2930 ladder?',{'native':[4326,4296,3606,3576,2886,2856,2166,2136,1446,1416],'outer_core_gain':10},['Supplement A §3.2'])
a=[4326,4296,3606,3576,2886,2856,2166,2136,1446,1416]; delta=[10,10,0,0,0,0,0,0,-10,-10]; b=[x+d for x,d in zip(a,delta)]; gaps=[b[i]-b[i+1] for i in range(9)]
finish(s,{'opened_ladder':b,'gaps':gaps,'widths':[a[0]-a[-1],b[0]-b[-1]],'centers':[F(a[0]+a[-1],2),F(b[0]+b[-1],2)]},'Two ten-year core gains produce the complete source2930 ladder while preserving the six inner nodes, every30 flank and midpoint2871. This is selective opening, not P applied to the whole2910 span.','Add the source’s final five-year boundary displacements and identify the conserved quantity.',{'source':b==[4336,4306,3606,3576,2886,2856,2166,2136,1436,1406],'gaps':gaps==[30,700,30,690,30,690,30,700,30],'selective':P*2910!=2930})