s1053.py

from research import *
s=begin(1053,'Shared Levi life forces the adjacent join','Does the Levi-birth landing add another condition after the clutch is derived?',{},['C1052','File62 §2.4'])
from covenant_model import *
from algebra import Matrix
def residual(v):
 r=regular(v);c=cumulative(v);return [c['base'][3]-c['clutch']-(r['Levi_birth']+v['full_state_shift'])]
coeff=coefficient_matrix(residual,KEYS);v={k:F(x) for k,x in json.loads((ROOT/'model/covenant_source_inputs.json').read_text()).items()};c=cumulative(v)
finish(s,{'coefficient_residual':coeff,'Levi_birth_landing':c['base'][3]-c['clutch'],'reason':'Both cumulative and regular paths use the same Levi lifespan.'},'The second landing is an identity after the first join and shared Levi lifespan are retained. It contributes no additional source equation.','Test the next Jacob-to-Isaac landing in the same symbolic source model.',{'universal_identity':coeff==[[0]*19],'source_landing':c['base'][3]-c['clutch']==1919})