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| Mirrors > Home > MPE Home > Th. List > sbcbii | Structured version Visualization version GIF version | ||
| Description: Formula-building inference for class substitution. (Contributed by NM, 11-Nov-2005.) |
| Ref | Expression |
|---|---|
| sbcbii.1 | ⊢ (𝜑 ↔ 𝜓) |
| Ref | Expression |
|---|---|
| sbcbii | ⊢ ([𝐴 / 𝑥]𝜑 ↔ [𝐴 / 𝑥]𝜓) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sbcbii.1 | . . . 4 ⊢ (𝜑 ↔ 𝜓) | |
| 2 | 1 | a1i 11 | . . 3 ⊢ (⊤ → (𝜑 ↔ 𝜓)) |
| 3 | 2 | sbcbidv 3794 | . 2 ⊢ (⊤ → ([𝐴 / 𝑥]𝜑 ↔ [𝐴 / 𝑥]𝜓)) |
| 4 | 3 | mptru 1577 | 1 ⊢ ([𝐴 / 𝑥]𝜑 ↔ [𝐴 / 𝑥]𝜓) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ↔ wb 209 ⊤wtru 1571 [wsbc 3739 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2733 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2740 df-cleq 2753 df-clel 2836 df-sbc 3740 |
| This theorem is used by: eqsbc2 3802 sbc3an 3803 sbccom 3818 sbcrext 3820 sbcabel 3825 csbcow 3862 csbco 3863 sbcnel12g 4372 sbcne12 4373 csbcom 4378 csbnestgfw 4380 csbnestgf 4385 sbccsb 4394 sbccsb2 4395 csbab 4398 2nreu 4402 sbcssg 4477 sbcop 5459 sbcrel 5757 sbcfung 6555 sbcfungOLD 6556 tfinds2 7864 frpoins3xpg 8141 frpoins3xp3g 8142 mpoxopovel 8221 f1od2 33293 bnj62 35334 bnj89 35335 bnj156 35342 bnj524 35351 bnj610 35361 bnj919 35381 bnj976 35391 bnj110 35471 bnj91 35474 bnj92 35475 bnj106 35481 bnj121 35483 bnj124 35484 bnj125 35485 bnj126 35486 bnj130 35487 bnj154 35491 bnj155 35492 bnj153 35493 bnj207 35494 bnj523 35500 bnj526 35501 bnj539 35504 bnj540 35505 bnj581 35521 bnj591 35524 bnj609 35530 bnj611 35531 bnj934 35548 bnj1000 35554 bnj984 35565 bnj985v 35566 bnj985 35567 bnj1040 35585 bnj1123 35599 bnj1452 35665 bnj1463 35668 sbcalf 39014 sbcexf 39015 sbccom2lem 39024 sbccom2 39025 sbccom2f 39026 sbccom2fi 39027 csbcom2fi 39028 rspcsbnea 43149 2sbcrex 43748 sbcrot3 43751 sbcrot5 43752 2rexfrabdioph 43756 3rexfrabdioph 43757 4rexfrabdioph 43758 6rexfrabdioph 43759 7rexfrabdioph 43760 rmydioph 43974 expdiophlem2 43982 sbcheg 44738 sbc3or 45474 trsbc 45482 onfrALTlem5 45484 eqsbc2VD 45781 sbcoreleleqVD 45800 onfrALTlem5VD 45826 ich2exprop 48497 |
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