| first-element :before < metabang.cl-containers:abstract-queue > |
| first-element < array > |
| first-element < metabang.cl-containers:basic-queue > |
| first-element < metabang.cl-containers:binary-search-tree > |
| first-element < metabang.cl-containers::bst-node > |
| first-element < metabang.cl-containers:dlist-container > |
| first-element < metabang.cl-containers:iteratable-container-mixin > |
| first-element < list > |
| first-element < metabang.cl-containers:list-container > |
| first-element < metabang.cl-containers:priority-queue-on-container > |
| first-element < metabang.cl-containers:ring-buffer > |
| first-element < metabang.cl-containers:sorted-list-container > |
| first-element < metabang.cl-containers:stack-container > |
| first-element < vector > |
| first-element < metabang.cl-containers::vector-container-mixin > |