Answer:

IFSO

Answer	Crossword Clue
IFSO	In that case
IFSO	In which case
IFSO	That being the case

IFSO	Assuming it's true
IFSO	Truth-assuming words
IFSO	Should that be the case
IFSO	"Assuming that's the case..."
IFSO	"Assuming that's true ..."
IFSO	Assuming that's true
IFSO	Start of a hypothesis
IFSO	"In that case..."

IFSO	"In that event..."
IFSO	Conclusion lead-in
IFSO	"In that event ..."
IFSO	"That being the case ..."
IFSO	Speculative words
IFSO	"Assuming that ..."
IFSO	Assumption before "then"
IFSO	Assumption-to-conclusion segue

IFSO	Conditional phrase
IFSO	"Given that ..."
IFSO	"Granting that ..."
IFSO	Should that be true
IFSO	"Say that's true ..."
IFSO	In that event
IFSO	Words before then
IFSO	"Assuming I'm right . . ."

IFSO	"Based on that ..."
IFSO	Conditional words
IFSO	Words before a conclusion
IFSO	"Should that be true ..."
IFSO	Choice words
IFSO	Assuming that
IFSO	"Presuming that to be true..."
IFSO	"In that case ..."

IFSO	"Presuming that to be true ..."
IFSO	Were that to happen
IFSO	"Assuming I'm right ..."
IFSO	"Should that happen ..."
IFSO	Granting that