def is_subclique(g, nodes):
  """
  Check whether a subset of nodes given by ``nodes`` in graph ``g`` form
  an induced clique, that is whether the induced subgraph formed by the
  given nodes is a clique.

  :param networkx.classes.graph.Graph g: The graph to examine.
  
  :param nodes: The list of identifiers of the nodes to consider.
  
  :type nodes: List[int]
  
  :rtype: bool
  
  :returns: `True` if the nodes form an induced clique, `False` otherwise.
  """
  
  nodes_set = set(nodes)
  k = len(nodes_set)
  
  for u in nodes:
    neighbors = set(g.neighbors(u))
    induced_neighbors = neighbors.intersection(nodes_set)
    
    # Check whether the induced neighbors (neighbors of the current vertex
    # which are part of the given subset of nodes) is equal to k-1 (the size
    # of the subset of nodes, with the current node excluded).
    
    if len(induced_neighbors) != k-1:
      
      # If not, then the nodes do not form an induced clique.
      
      return False
  
  return True