Collisions with EBar gliders

Table 3.20: Of the four relative alignments between an EBar and an F, the three highest let the EBar pass. The lowest removes them both leaving only a B to mark their presence.

1${}^{st}$	EBar + F
2${}^{nd}$	EBar + F
3${}^{rd}$	EBar + F
4${}^{th}$	B

Figure 3.39: Left: EBar collides with F(1). Right: EBar collides with F(2).