Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > syl13anc | GIF version |
Description: Syllogism combined with contraction. (Contributed by NM, 11-Mar-2012.) |
Ref | Expression |
---|---|
sylXanc.1 | ⊢ (𝜑 → 𝜓) |
sylXanc.2 | ⊢ (𝜑 → 𝜒) |
sylXanc.3 | ⊢ (𝜑 → 𝜃) |
sylXanc.4 | ⊢ (𝜑 → 𝜏) |
syl13anc.5 | ⊢ ((𝜓 ∧ (𝜒 ∧ 𝜃 ∧ 𝜏)) → 𝜂) |
Ref | Expression |
---|---|
syl13anc | ⊢ (𝜑 → 𝜂) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sylXanc.1 | . 2 ⊢ (𝜑 → 𝜓) | |
2 | sylXanc.2 | . . 3 ⊢ (𝜑 → 𝜒) | |
3 | sylXanc.3 | . . 3 ⊢ (𝜑 → 𝜃) | |
4 | sylXanc.4 | . . 3 ⊢ (𝜑 → 𝜏) | |
5 | 2, 3, 4 | 3jca 1161 | . 2 ⊢ (𝜑 → (𝜒 ∧ 𝜃 ∧ 𝜏)) |
6 | syl13anc.5 | . 2 ⊢ ((𝜓 ∧ (𝜒 ∧ 𝜃 ∧ 𝜏)) → 𝜂) | |
7 | 1, 5, 6 | syl2anc 408 | 1 ⊢ (𝜑 → 𝜂) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 103 ∧ w3a 962 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 |
This theorem depends on definitions: df-bi 116 df-3an 964 |
This theorem is referenced by: syl23anc 1223 syl33anc 1231 caovassd 5930 caovcand 5933 caovordid 5937 caovordd 5939 caovdid 5946 caovdird 5949 swoer 6457 swoord1 6458 swoord2 6459 fimax2gtrilemstep 6794 iunfidisj 6834 ssfii 6862 suplub2ti 6888 prarloclem3 7308 fzosubel3 9976 seq3split 10255 seq3caopr 10259 zsumdc 11156 fsumiun 11249 divalglemex 11622 strle1g 12052 psmetsym 12501 psmettri 12502 psmetge0 12503 psmetres2 12505 xmetge0 12537 xmetsym 12540 xmettri 12544 metrtri 12549 xmetres2 12551 bldisj 12573 xblss2ps 12576 xblss2 12577 xmeter 12608 xmetxp 12679 |
Copyright terms: Public domain | W3C validator |