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| R7f. ConjUu (( P , Q ))$(u). :$1b | | R7f. ConjUu (( P , Q ))$(u). :$1b |
| </pre> | | </pre> |
| + | |
| + | <br> |
| + | |
| + | {| align="center" cellpadding="0" cellspacing="0" style="border-left:1px solid black; border-top:1px solid black; border-right:1px solid black; border-bottom:1px solid black" width="90%" |
| + | | |
| + | {| align="center" cellpadding="0" cellspacing="0" width="100%" |
| + | |- style="height:40px; text-align:center" |
| + | | width="80%" | |
| + | | width="20%" style="border-left:1px solid black" | <math>\operatorname{Rule~6}</math> |
| + | |} |
| + | |- |
| + | | |
| + | {| align="center" cellpadding="0" cellspacing="0" width="100%" |
| + | |- style="height:40px" |
| + | | width="2%" style="border-top:1px solid black" | |
| + | | width="18%" style="border-top:1px solid black" | <math>\text{If}\!</math> |
| + | | width="60%" style="border-top:1px solid black" | <math>f, g ~:~ X \to Y</math> |
| + | | width="20%" style="border-top:1px solid black; border-left:1px solid black" | |
| + | |- style="height:40px" |
| + | | |
| + | | <math>\text{then}\!</math> |
| + | | <math>\text{the following are equivalent:}\!</math> |
| + | | style="border-left:1px solid black" | |
| + | |} |
| + | |- |
| + | | |
| + | {| align="center" cellpadding="0" cellspacing="0" width="100%" |
| + | |- style="height:40px" |
| + | | width="2%" style="border-top:1px solid black" | |
| + | | width="18%" style="border-top:1px solid black" | <math>\operatorname{R6a.}</math> |
| + | | width="60%" style="border-top:1px solid black" | <math>f ~=~ g</math> |
| + | | width="20%" style="border-top:1px solid black; border-left:1px solid black; text-align:center" | <math>\operatorname{R6a~:~D3a}</math> |
| + | |- style="height:20px" |
| + | | |
| + | | |
| + | | |
| + | | style="border-left:1px solid black; text-align:center" | <math>::\!</math> |
| + | |- style="height:60px" |
| + | | |
| + | | <math>\operatorname{R6b.}</math> |
| + | | <math>\overset{X}{\underset{x}{\forall}}~ (f(x) ~=~ g(x))</math> |
| + | | style="border-left:1px solid black; text-align:center" | |
| + | <p><math>\operatorname{R6b~:~D3b}</math></p> |
| + | <p><math>\operatorname{R6b~:~D6a}</math></p> |
| + | |- style="height:20px" |
| + | | |
| + | | |
| + | | |
| + | | style="border-left:1px solid black; text-align:center" | <math>::\!</math> |
| + | |- style="height:40px" |
| + | | |
| + | | <math>\operatorname{R6c.}</math> |
| + | | <math>\operatorname{Conj_x^X}~ (f(x) ~=~ g(x))</math> |
| + | | style="border-left:1px solid black; text-align:center" |<math>\operatorname{R6c~:~D6e}</math> |
| + | |} |
| + | |} |
| + | |
| + | <br> |
| | | |
| ===Rule 8=== | | ===Rule 8=== |