const email = (value) => { 
    if (!yup.string().email().isValidSync(value)) {
      return 'Invalid email'
    } 
}

const required = (value) => { 
    if (!yup.string().required().isValidSync(value)) {
      return 'Field required'
    } 
}

<form>
     <TextField
        name="email"
        validate={[required(), email()]}
    />
    <TextField
        name="password"
        type="password"
        validate={required()}
    />
</form>