cmd-history(e) == es-interface-history(es;x.sys-cmds(x)'Sys(valid);e) 

latex

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clarification:

cmd-history{i:l}
cmd-history(es; Config; Cmd; Sys; e)
== es-interface-history(es;x.sys-cmds(x)'sys-valid{i:l}
== es-interface-history(es;x.sys-cmds(x)'sys-valid(es; Config; Cmd; Sys);e) 

latex

Definitions	es-interface-history(es;X;e), f'Ia, x.A(x), sys-cmds(x), Sys(valid)
FDL editor aliases	cmd-history