congruence

The congruence of interests creates this historic opportunity.

Is there a complete congruence of form-relationship between larv on the one hand and imagines on the other?

All these cases show a complete congruence in the two kinds of form-relationship; but exceptions are not wanting.

The number of the changes would here alone determine whether congruence or incongruence occurred between the two stages.

We shall find in the next lecture that it is from this symmetry that the theory of congruence is deduced.

What is this but a judgment of congruence applied to the train of successive positions of the yard  measure?