Exact(4)
Moreover, the symbol (L|P) denotes a path constructed from the path (P) by adding (L) to it as the first element; the value of the expression (length(P)), in turn, is a number of elements of the sequence (P).
A labeled path p is a sequence of atoms connected by bonds p = ( a ^ 0, b 0, a ^ 1, b 1, …, b d − 1, a ^ d ), where bond b i connects a ^ i with a ^ i + 1. p ij denotes a path connecting the ith atom with the jth atom.
P1+ P2 denotes a path formed by concatenating P1– P1.
Let A⇒ B denotes a path from a node A to another node B through more than one edges, and A→ B denotes the path from A to B through exact one edge (A, B).
Similar(56)
There's "Cat Eats Well Then Shares Her Beef Gravy," a mnemonic denoting a path north from the Aldwych — the crescent-shaped road that loops above the Strand — along a sequence of one-way streets: Catherine, Exeter, Wellington, Tavistock, Southampton, Henrietta, Bedford, Garrick.
Let (P) denote a path being currently under construction.
Let E denote a path of N edges, that is, E = e1, e2,...,e N.
The zigzag arrows denote a path of waves in the second quadrant inside curled channels.
A desire path, also known as a desire line, social path or social trail, is a technical term that has been used by urban planners for almost a hundred years to denote a path formed by pedestrians in a formal urban environment [3].
In Fig. 8a, the zigzag arrows on the left-hand side denote a path of waves in the second quadrant inside curled channels and X-shaped blue region on the right-hand side shows a simple view of the path of the waves through the curled channels.
Let denote a path of edges in G C of length l.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com