gamma sub 1 == gamma sub 2 \[u21D4] left { matrix{
lcol{ {gamma sub 1 ( 0 ) = gamma sub 2 ( 0 ) = p , roman " and "} above {{left "" {roman {d}} over {roman {d} t} phi \[u2218] gamma sub 1 ( t ) right |} sub {t = 0} = {left "" {roman {d}} over {roman {d} t} phi \[u2218] gamma sub 2 ( t ) right |} sub {t = 0}} }
} right ""