diff --git a/TST/01_Derivation/B1_derivation_meta.pdf b/TST/01_Derivation/1B_derivation_meta.pdf similarity index 100% rename from TST/01_Derivation/B1_derivation_meta.pdf rename to TST/01_Derivation/1B_derivation_meta.pdf diff --git a/TST/01_Derivation/B1_derivation_meta.tex b/TST/01_Derivation/1B_derivation_meta.tex similarity index 100% rename from TST/01_Derivation/B1_derivation_meta.tex rename to TST/01_Derivation/1B_derivation_meta.tex