1. A claim of a will or its revocation or amendment shall not be admissible upon denial after the testator's death, except by the testimony of two credible witnesses or those deemed equivalent thereto. 2. If the will is authenticated before the competent authorities, no claim of amendment or revocation thereof, or of any part thereof, after the testator's death shall be admissible except in the same manner.
Interpretation and application must be checked against the official text and current version.