s1333.py

from research import *
s=begin(1333,"Draft examples that distinguish row operations","How can a century affect Regular and Cumulative measurements differently?",{},["C1162–C1189","Strategy.md"])
t=json.loads("\"## Local changes become complete chronological fields\\n\\nWrite an ordinary row as begetting age \\\\(b\\\\), remaining years \\\\(r\\\\), and lifespan \\\\(L=b+r\\\\). A compatible change has the form\\n\\n\\\\[\\n(b,r,L)\\\\longmapsto(b+d,\\\\ r+e-d,\\\\ L+e).\\n\\\\]\\n\\nHere \\\\(d\\\\) changes the birth interval and \\\\(e\\\\) changes lifespan. If \\\\(e=0\\\\), years move between the two parts of a life while its total stays fixed. If \\\\(e=d\\\\), remaining years stay fixed while both the begetting age and lifespan rise. These are different local mechanisms even when the same century appears.\\n\\n| Row and comparison | Begetting age | Remaining years | Lifespan | What the change preserves |\\n|---|---:|---:|---:|---|\\n| Adam, MT → LXX | 130 → 230 | 800 → 700 | 930 → 930 | Lifespan |\\n| Peleg, MT → LXX | 30 → 130 | 209 → 209 | 239 → 339 | Remaining years |\\n| Eber, MT → SP | 34 → 134 | 430 → 270 | 464 → 404 | Neither part nor lifespan; \\\\(d=100,e=-60\\\\) |\\n| Cainan, native LXX insertion | 130 | 330 | 460 | Adds a named row with two distinct measures |\\n\\nThus Regular and Cumulative differences are not rival readings of a single change total. They select different components of the source rows. Adam’s change is visible to a Regular birth chain and invisible to a lifespan sum. Peleg’s change is visible to both. Cainan contributes 130 or 460 according to the declared measurement.\\n\\nSource basis: File18 selected rows; Strategy §3.2; C1162–C1189.\\n\"")
a=artifact("draft/02a_row_examples.md",t)
finish(s,{'artifact':a,'words':len(t.split())},"The same numerical century now has concrete, contrasting source examples tied to its preserved quantity.","Explain how these local changes generate the whole field.",{'nonempty':len(t)>100,'four_examples':all(x in t for x in ['Adam','Peleg','Eber','Cainan'])})