Проблемы с solve

Resh[1][1]:=solve({eq1,eq2,eq3,eq4,eq5,eq6,eq7,eq8,eq9},{x[1],x[2],x[3],x[4],mu[0]});
> assign(Resh[1][1]);
> 
 
  Resh[1][1] := {mu[0] = -0.2354462347 lambda - 0.5413136044,
 
        x[1] = 0.1957839787 + 0.08496112575 lambda,
 
        x[2] = 0.2650106413 + 0.04262740555 lambda,
 
        x[3] = -0.03801908031 lambda + 0.2614849798,
 
        x[4] = 0.2777204003 - 0.08956945100 lambda}
 
> for i from 2 to 5 do
> Res1[i]:=Resh[1][1][i]>=0;
> end do;
> s1:=lambda>=0;
> 
 
  Res1[2] := 0 <= (0.2650106413 + 0.04262740555 lambda =
 
        0.2650106413 + 0.04262740555 lambda)
 
 
  Res1[3] := 0 <= (0.2777204003 - 0.08956945100 lambda =
 
        0.2777204003 - 0.08956945100 lambda)
 
 
  Res1[4] := 0 <= (-0.2354462347 lambda - 0.5413136044 =
 
        -0.2354462347 lambda - 0.5413136044)
 
 
  Res1[5] := 0 <= (-0.03801908031 lambda + 0.2614849798 =
 
        -0.03801908031 lambda + 0.2614849798)
 
 
                          s1 := 0 <= lambda
 
> Resh[1][2]:=solve({Res1[2],Res1[3],Res1[4],Res1[5],s1},{lambda});
 
Error, invalid input: solve expects its 1st argument, eqs, to be of type {and, not, or, algebraic, relation(algebraic), {list, set}({and, not, or, algebraic, relation(algebraic)})}, but received {0 <= lambda, 0 <= (.2650106413+.4262740555e-1*lambda = .2650106413+.4262740555e-1*lambda), 0 <= (.2777204003-.8956945100e-1*lambda = .2777204003-.8956945100e-1*lambda), 0 <= (-.2354462347*lambda-.5413136044 = -.2354462347*lambda-.5413136044), 0 <= (-.3801908031e-1*lambda+.2614849798 = -.3801908031e-1*lambda+.26...