An isomorphism is a bijective homomorphism.

Ped[ro]. Stand to your guard ſir, all the devils extant / Are broke upon us, like a cloud of thunder; / There are more women, marching hitherward, / In reſcue of my Miſtris, then ere turn’d taile / At Sturbridge Faire; and I believe, as fiery. / Jaq[ues]. The forlorn-hope’s led by a tanners wife, / I know her by her hide; a deſperate woman: …

Taking a break from work seems to have done her a world of good.

ROMEO:[…]Good morrow to you both. What counterfeit did I give you? MERCUTIO:The slip, sir, the slip. Can you not conceive?