indimpltarget.lean:6:2-6:45: error: Failed to infer implicit target `m`
indimpltarget.lean:16:2-16:45: error: Failed to infer implicit target `n`
indimpltarget.lean:26:0-26:7: warning: declaration uses `sorry`
indimpltarget.lean:40:2-40:45: error: Failed to infer implicit target