% % % % \section{Constants}\label{S:constants} \InputIfFileExists{supp/S1_A}{}{} \InputIfFileExists{supp/S1_B}{}{} \InputIfFileExists{supp/S1_C}{}{} \InputIfFileExists{supp/S1_D}{}{} \InputIfFileExists{supp/S1_E}{}{} \InputIfFileExists{supp/S1_F}{}{} \InputIfFileExists{supp/S1_G}{}{} \InputIfFileExists{supp/S1_H}{}{} \InputIfFileExists{supp/S1_I}{}{} \section{Full proofs of steps sketched in the main text}\label{S:proofs} \InputIfFileExists{supp/S2_A}{}{} \InputIfFileExists{supp/S2_B}{}{} \InputIfFileExists{supp/S2_C}{}{} \InputIfFileExists{supp/S2_D}{}{} \InputIfFileExists{supp/S2_E}{}{} \InputIfFileExists{supp/S2_F}{}{} \InputIfFileExists{supp/S2_G}{}{} \InputIfFileExists{supp/S2_H}{}{} \InputIfFileExists{supp/S2_I}{}{} \section{Numerical checks}\label{S:numerics} \InputIfFileExists{supp/S3_A}{}{}