inequality
An open sentence.
A mathematical sentence that contains an equals sign would be called an equation.
An equation.
an equation.
it is called a inequality
The sentence that contains the universal truth is called a fact.
An open sentence.
A mathematical sentence that contains an equals sign would be called an equation.
An equation.
Water that contains hydrogen-2 instead of hydrogen-1 is called heavy water.
an inequality
an equation.
A complete sentence contains a person, place or thing doing something. The person, place or thing is called the subject of the sentence. The "doing something" part of the sentence is called the action, predicate or verb. Traditionally, text books say that a complete sentence is one that contains both a subject and a predicate.
it is called heavy water
I'm pretty sure it's an open sentence.
Conclusion; Wrap-Up; Clincher Sentence
An empty space or a placeholder in a sentence could be a sign that there is a comparison being made. Comparisons often highlight similarities or differences between two or more things, helping the reader understand the context and meaning of the text.