bugs - Inequality involving Quantity stays unevaluated

Bug introduced in 10.1 and solved in 11.1

An expression like this one

a < x < b

is represented as

Less[a, x, b]

while an expression like

a < x <= b

is represented as

Inequality[a, Less, x, LessEqual, b]

On my machine a problem arise when an Inequality expression contains Quantity expressions. For example

Quantity[6368, "Kilometers"] < Quantity[5500, "Kilometers"] <= 
 Quantity[6371, "Kilometers"]

stays unevaluated:

Quantity[6368, "Kilometers"] < Quantity[5500, "Kilometers"] <= Quantity[6371, "Kilometers"]

An annoying workaround is to LogicalExpand all Inequality expressions that may contains Quantity expression.

LogicalExpand@%

False

Comments

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