obsolete positive regulation of mitotic prometaphase (obsolete GO:0035416)
OBSOLETE. Any process that activates or increases the frequency, rate or extent of mitotic prometaphase, the stage following prophase in mitosis (in higher eukaryotes) during which the nuclear envelope is disrupted and breaks into membrane vesicles, and the spindle microtubules enter the nuclear region.
positive regulation of mitotic prometaphase
exact